Central Thesaurus

Taxon Search
Organism
  Plantae
      Tracheophyta
            Magnoliopsida
                    Lamiales
                            Plantaginaceae
                                     Angelonia
                                             Angelonia angustifolia
                                             Angelonia salicariifolia
                                     Antirrhinum
                                             Antirrhinum antirrhiniflorum
                                                   [Antirrhinum maurandioides]
                                                   [Asarina antirrhiniflora]
                                                   [Maurandella antirrhiniflora]
                                                   [Maurandya antirrhiniflora]
                                             Antirrhinum cornutum
                                                   [Sairocarpus cornutus]
                                               Antirrhinum cornutum var. leptaleum
                                                     [Antirrhinum leptaleum]
                                             Antirrhinum coulterianum
                                                   [Sairocarpus coulterianus]
                                               Antirrhinum coulterianum subsp. orcuttianum
                                             Antirrhinum elmeri
                                                   [Sairocarpus elmeri]
                                             Antirrhinum filipes
                                                   [Antirrhinum cooperi]
                                                   [Asarina filipes]
                                                   [Neogaerrhinum filipes]
                                             Antirrhinum kingii
                                                   [Sairocarpus kingii]
                                             Antirrhinum majus
                                             Antirrhinum mohavea
                                                   [Mohavea breviflora]
                                             Antirrhinum nuttallianum
                                                   [Sairocarpus nuttallianus]
                                               Antirrhinum nuttallianum subsp. nuttallianum
                                             Antirrhinum ovatum
                                                   [Howelliella ovata]
                                             Antirrhinum pusillum
                                                   [Antirrhinum nuttallianum subsp. subsessile]
                                                   [Antirrhinum subsessile]
                                                   [Sairocarpus pusillus]
                                             Antirrhinum strictum
                                                   [Antirrhinum hookerianum]
                                                   [Antirrhinum kelloggii]
                                                   [Asarina stricta]
                                                   [Neogaerrhinum kelloggii]
                                                   [Neogaerrhinum strictum]
                                             Antirrhinum subcordatum
                                                   [Sairocarpus subcordatus]
                                             Antirrhinum thompsonii
                                                   [Antirrhinum multiflorum]
                                                   [Sairocarpus multiflorus]
                                             Antirrhinum vexillo-calyculatum
                                             Antirrhinum vexillocalyculatum
                                               Antirrhinum vexillocalyculatum subsp. breweri
                                                     [Antirrhinum breweri]
                                                     [Sairocarpus breweri]
                                               Antirrhinum vexillocalyculatum subsp. intermedium
                                               Antirrhinum vexillocalyculatum subsp. vexillocalyculatum
                                                     [Sairocarpus vexillocalyculatus]
                                             Antirrhinum virga
                                                   [Sairocarpus virga]
                                             Antirrhinum watsonii
                                                   [Antirrhinum kingii var. watsonii]
                                                   [Sairocarpus watsonii]
                                             Antirrhinum wislizenii
                                     Asarina
                                     Bacopa
                                             Bacopa axillaris
                                             Bacopa braunii
                                             Bacopa caroliniana
                                                   [Hydrotrida caroliniana]
                                             Bacopa egensis
                                             Bacopa eisenii
                                             Bacopa floribunda
                                             Bacopa monnieri
                                                   [Bramia monnieri]
                                                   [Lysimachia monnieri]
                                             Bacopa repens
                                                   [Bacopa cyclophylla]
                                                   [Bacopa innominata]
                                                   [Bacopa stragula]
                                                   [Gratiola repens]
                                                   [Herpestis rotundifolia]
                                                   [Macuillamia obovata]
                                                   [Macuillamia repens]
                                             Bacopa rotundifolia
                                                   [Bacopa nobsiana]
                                                   [Bacopa simulans]
                                                   [Bramia rotundifolia]
                                                   [Hydranthelium rotundifolium]
                                                   [Macuillamia rotundifolia]
                                             Bacopa stricta
                                                   [Caconapea stricta]
                                     Callitriche
                                             Callitriche brutia
                                               Callitriche brutia subsp. hamulata
                                                     [Callitriche autumnalis]
                                             Callitriche deflexa
                                             Callitriche fassettii
                                             Callitriche hermaphroditica
                                                   [Callitriche autumnalis]
                                             Callitriche heterophylla
                                               Callitriche heterophylla subsp. bolanderi
                                                     [Callitriche bolanderi]
                                                     [Callitriche heterophylla var. bolanderi]
                                               Callitriche heterophylla subsp. heterophylla
                                                     [Callitriche anceps]
                                               Callitriche heterophylla var. heterophylla
                                             Callitriche longipedunculata
                                             Callitriche marginata
                                                   [Callitriche sepulta]
                                             Callitriche nuttallii
                                                   [Callitriche pedunculosa]
                                             Callitriche palustris
                                                   [Callitriche palustris var. verna]
                                                   [Callitriche verna]
                                             Callitriche peploides
                                                   [Callitriche peploides var. semialata]
                                             Callitriche stagnalis
                                             Callitriche stenoptera
                                             Callitriche terrestris
                                                   [Callitriche austinii]
                                                   [Callitriche deflexa var. austinii]
                                                   [Callitriche deflexa var. subsessilis]
                                               Callitriche terrestris subsp. subsessilis
                                                     [Callitriche deflexa var. subsessilis]
                                               Callitriche terrestris subsp. terrestris
                                                     [Callitriche austinii]
                                             Callitriche trochlearis
                                     Chaenorhinum
                                             Chaenorhinum minus
                                     Chelone
                                             Chelone cuthbertii
                                                   [Chelone grimesii]
                                             Chelone glabra
                                                   [Chelone chlorantha]
                                                   [Chelone glabra var. chlorantha]
                                                   [Chelone glabra var. dilatata]
                                                   [Chelone glabra var. elatior]
                                                   [Chelone glabra var. elongata]
                                                   [Chelone glabra var. linifolia]
                                                   [Chelone glabra var. ochroleuca]
                                                   [Chelone glabra var. typica]
                                                   [Chelone montana]
                                             Chelone lyonii
                                             Chelone obliqua
                                               Chelone obliqua var. erwiniae
                                               Chelone obliqua var. obliqua
                                               Chelone obliqua var. speciosa
                                     Chionophila
                                             Chionophila jamesii
                                             Chionophila tweedyi
                                     Collinsia
                                             Collinsia bartsiifolia
                                               Collinsia bartsiifolia var. bartsiifolia
                                               Collinsia bartsiifolia var. davidsonii
                                               Collinsia bartsiifolia var. hirsuta
                                               Collinsia bartsiifolia var. stricta
                                             Collinsia callosa
                                             Collinsia childii
                                             Collinsia concolor
                                             Collinsia corymbosa
                                             Collinsia grandiflora
                                                   [Antirrhinum tenellum]
                                                   [Collinsia grandiflora var. pusilla]
                                                   [Collinsia parviflora var. grandiflora]
                                             Collinsia greenei
                                             Collinsia heterophylla
                                               Collinsia heterophylla var. austromontana
                                                     [Collinsia austromontana]
                                               Collinsia heterophylla var. heterophylla
                                             Collinsia latifolia
                                                   [Collinsia torreyi var. latifolia]
                                             Collinsia linearis
                                                   [Collinsia rattanii var. linearis]
                                             Collinsia multicolor
                                                   [Collinsia franciscana]
                                             Collinsia parryi
                                                   [Collinsia antonina subsp. purpurea]
                                                   [Collinsia antonina]
                                             Collinsia parviflora
                                                   [Antirrhinum tenellum]
                                                   [Collinsia grandiflora var. pusilla]
                                                   [Collinsia tenella]
                                             Collinsia rattanii
                                               Collinsia rattanii subsp. glandulosa
                                               Collinsia rattanii subsp. rattanii
                                             Collinsia sparsiflora
                                               Collinsia sparsiflora var. arvensis
                                               Collinsia sparsiflora var. bruceae
                                                     [Collinsia bruceae]
                                               Collinsia sparsiflora var. collina
                                                     [Collinsia solitaria]
                                               Collinsia sparsiflora var. sparsiflora
                                             Collinsia tinctoria
                                             Collinsia torreyi
                                               Collinsia torreyi var. brevicarinata
                                               Collinsia torreyi var. torreyi
                                               Collinsia torreyi var. wrightii
                                                     [Collinsia wrightii]
                                             Collinsia verna
                                             Collinsia violacea
                                     Conobea
                                             Conobea multifida
                                                   [Leucospora multifida]
                                     Cymbalaria
                                             Cymbalaria muralis
                                                   [Linaria cymbalaria]
                                               Cymbalaria muralis subsp. muralis
                                                     [Linaria cymbalaria]
                                     Digitalis
                                             Digitalis grandiflora
                                                   [Digitalis ambigua]
                                                   [Digitalis orientalis]
                                             Digitalis lanata
                                             Digitalis lutea
                                             Digitalis purpurea
                                               Digitalis purpurea subsp. purpurea
                                                     [Digitalis purpurea var. alba]
                                                     [Digitalis purpurea var. gloxiniiflora]
                                                     [Digitalis purpurea var. tomentosa]
                                     Dopatrium
                                             Dopatrium junceum
                                     Epixiphium
                                             Epixiphium wislizeni
                                                   [Antirrhinum wislizeni]
                                                   [Asarina wislizeni]
                                                   [Maurandya wislizeni]
                                     Erinus
                                     Galvezia
                                     Gambelia
                                             Gambelia speciosa
                                                   [Galvezia speciosa]
                                     Gratiola
                                             Gratiola amphiantha
                                                   [Amphianthus pusillus]
                                             Gratiola aurea
                                                   [Gratiola aurea var. obtusa]
                                                   [Gratiola lutea]
                                             Gratiola brevifolia
                                             Gratiola ebracteata
                                             Gratiola flava
                                             Gratiola floridana
                                             Gratiola heterosepala
                                             Gratiola hispida
                                                   [Gratiola subulata]
                                                   [Sophronanthe hispida]
                                             Gratiola neglecta
                                                   [Gratiola neglecta var. glaberrima]
                                             Gratiola pilosa
                                                   [Gratiola pilosa var. epilis]
                                                   [Sophronanthe pilosa]
                                                   [Tragiola pilosa subsp. epilis]
                                                   [Tragiola pilosa]
                                             Gratiola quartermaniae
                                             Gratiola ramosa
                                             Gratiola virginiana
                                                   [Gratiola sphaerocarpa]
                                               Gratiola virginiana var. aestuariorum
                                               Gratiola virginiana var. virginiana
                                                     [Gratiola sphaerocarpa]
                                             Gratiola viscidula
                                                   [Gratiola viscidula subsp. shortii]
                                                   [Gratiola viscidula var. shortii]
                                                   [Gratiola viscosa]
                                     Hippuris
                                             Hippuris lanceolata
                                             Hippuris tetraphylla
                                             Hippuris vulgaris
                                                   [Hippuris montana]
                                     Keckiella
                                             Keckiella antirrhinoides
                                               Keckiella antirrhinoides subsp. antirrhinoides
                                                     [Penstemon antirrhinoides]
                                               Keckiella antirrhinoides var. antirrhinoides
                                               Keckiella antirrhinoides var. microphylla
                                                     [Keckiella antirrhinoides subsp. microphylla]
                                                     [Penstemon antirrhinoides subsp. microphyllus]
                                                     [Penstemon microphyllus]
                                             Keckiella breviflora
                                                   [Penstemon breviflorus]
                                               Keckiella breviflora subsp. breviflora
                                                     [Penstemon breviflorus]
                                               Keckiella breviflora var. breviflora
                                               Keckiella breviflora var. glabrisepala
                                                     [Keckiella breviflora subsp. glabrisepala]
                                                     [Penstemon breviflorus subsp. glabrisepalus]
                                             Keckiella cordifolia
                                                   [Penstemon cordifolius]
                                             Keckiella corymbosa
                                                   [Penstemon corymbosus]
                                             Keckiella lemmonii
                                                   [Penstemon lemmonii]
                                             Keckiella rothrockii
                                                   [Penstemon rothrockii]
                                               Keckiella rothrockii subsp. rothrockii
                                                     [Penstemon rothrockii]
                                               Keckiella rothrockii var. jacintensis
                                                     [Keckiella rothrockii subsp. jacintensis]
                                                     [Penstemon rothrockii subsp. jacintensis]
                                               Keckiella rothrockii var. rothrockii
                                             Keckiella ternata
                                                   [Penstemon ternatus]
                                               Keckiella ternata subsp. ternata
                                                     [Penstemon ternatus]
                                               Keckiella ternata var. septentrionalis
                                                     [Keckiella ternata subsp. septentrionalis]
                                                     [Penstemon ternatus subsp. septentrionalis]
                                               Keckiella ternata var. ternata
                                     Kickxia
                                             Kickxia elatine
                                                   [Antirrhinum elatine]
                                                   [Linaria elatine]
                                               Kickxia elatine subsp. elatine
                                                     [Antirrhinum elatine]
                                                     [Linaria elatine]
                                             Kickxia spuria
                                                   [Antirrhinum spurium]
                                               Kickxia spuria subsp. integrifolia
                                                     [Antirrhinum spurium]
                                     Lagotis
                                             Lagotis glauca
                                             Lagotis minor
                                                   [Lagotis glauca subsp. minor]
                                                   [Lagotis glauca var. stelleri]
                                             Lagotis stelleri
                                     Lendneria
                                     Leptandra
                                     Limnophila
                                             Limnophila aromatica
                                             Limnophila chinensis
                                             Limnophila emmelina
                                             Limnophila indica
                                                   [Hottonia indica]
                                             Limnophila laricicola
                                             Limnophila ludoviciana
                                             Limnophila macrocera
                                             Limnophila sessiliflora
                                             Limnophila subcostata
                                             Limnophila subtenuicornis
                                     Linaria
                                             Linaria aeruginea
                                             Linaria bipartita
                                             Linaria canadensis
                                             Linaria dalmatica
                                                   [Linaria dalmatica subsp. macedonica]
                                                   [Linaria dalmatica var. macedonica]
                                                   [Linaria genistifolia subsp. dalmatica]
                                                   [Linaria macedonica]
                                               Linaria dalmatica subsp. dalmatica
                                                     [Linaria genistifolia subsp. dalmatica]
                                                     [Linaria jattae]
                                             Linaria genistifolia
                                               Linaria genistifolia subsp. genistifolia
                                                     [Linaria jattae]
                                             Linaria incarnata
                                             Linaria maroccana
                                             Linaria pinifolia
                                                   [Linaria reticulata]
                                             Linaria purpurea
                                             Linaria repens
                                             Linaria spartea
                                             Linaria supina
                                             Linaria vulgaris
                                                   [Linaria linaria]
                                               Linaria vulgaris subsp. vulgaris
                                                     [Linaria linaria]
                                     Littorella
                                     Lophospermum
                                             Lophospermum erubescens
                                                   [Asarina erubescens]
                                     Mabrya
                                             Mabrya acerifolia
                                                   [Asarina acerifolia]
                                                   [Maurandya acerifolia]
                                     Maurandya
                                             Maurandya barclaiana
                                             Maurandya petrophila
                                                   [Asarina petrophila]
                                                   [Holmgrenanthe petrophila]
                                                   [Maurandella petrophila]
                                     Mecardonia
                                             Mecardonia acuminata
                                               Mecardonia acuminata subsp. acuminata
                                                     [Bacopa acuminata]
                                                     [Pagesia acuminata]
                                               Mecardonia acuminata subsp. microphylla
                                                     [Bacopa acuminata var. microphylla]
                                                     [Mecardonia acuminata var. microphylla]
                                               Mecardonia acuminata subsp. peninsularis
                                                     [Mecardonia acuminata var. peninsularis]
                                               Mecardonia acuminata var. acuminata
                                                     [Bacopa acuminata]
                                                     [Pagesia acuminata]
                                             Mecardonia procumbens
                                                   [Gratiola repens]
                                                   [Mecardonia dianthera]
                                                   [Mecardonia peduncularis]
                                                   [Mecardonia tenuis]
                                                   [Mecardonia vandellioides]
                                     Misopates
                                             Misopates orontium
                                                   [Antirrhinum orontium var. grandiflorum]
                                                   [Antirrhinum orontium]
                                               Misopates orontium subsp. orontium
                                                     [Antirrhinum orontium var. grandiflorum]
                                                     [Antirrhinum orontium]
                                     Nothochelone
                                             Nothochelone nemorosa
                                                   [Penstemon nemorosus]
                                     Nuttallanthus
                                             Nuttallanthus canadensis
                                             Nuttallanthus floridanus
                                                   [Linaria floridana]
                                             Nuttallanthus texanus
                                                   [Linaria canadensis var. texana]
                                                   [Linaria texana]
                                     Penstemon
                                           [Penstemon hybridus]
                                             Penstemon abietinus
                                             Penstemon absarokensis
                                             Penstemon acaulis
                                             Penstemon acuminatus
                                               Penstemon acuminatus var. acuminatus
                                               Penstemon acuminatus var. latebracteatus
                                             Penstemon alamosensis
                                             Penstemon albertinus
                                             Penstemon albidus
                                             Penstemon albomarginatus
                                             Penstemon alluviorum
                                                   [Penstemon laevigatus subsp. alluviorum]
                                             Penstemon ambiguus
                                                   [Leiostemon ambiguus]
                                               Penstemon ambiguus var. ambiguus
                                                     [Leiostemon ambiguus]
                                               Penstemon ambiguus var. laevissimus
                                                     [Penstemon ambiguus subsp. laevissimus]
                                             Penstemon ammophilus
                                             Penstemon anguineus
                                                   [Penstemon rattanii var. minor]
                                             Penstemon angustifolius
                                               Penstemon angustifolius var. angustifolius
                                               Penstemon angustifolius var. caudatus
                                                     [Penstemon angustifolius subsp. caudatus]
                                                     [Penstemon caudatus]
                                               Penstemon angustifolius var. dulcis
                                               Penstemon angustifolius var. venosus
                                                     [Penstemon angustifolius subsp. venosus]
                                                     [Penstemon venosus]
                                               Penstemon angustifolius var. vernalensis
                                             Penstemon arenarius
                                                   [Penstemon maguirei]
                                             Penstemon arenicola
                                             Penstemon aridus
                                             Penstemon arkansanus
                                                   [Penstemon multicaulis]
                                                   [Penstemon pallidus subsp. arkansanus]
                                                   [Penstemon wherryi]
                                             Penstemon attenuatus
                                               Penstemon attenuatus var. attenuatus
                                               Penstemon attenuatus var. militaris
                                                     [Penstemon assurgens]
                                                     [Penstemon attenuatus subsp. militaris]
                                               Penstemon attenuatus var. palustris
                                                     [Penstemon attenuatus subsp. palustris]
                                               Penstemon attenuatus var. pseudoprocerus
                                                     [Penstemon attenuatus subsp. pseudoprocerus]
                                             Penstemon atwoodii
                                             Penstemon auriberbis
                                             Penstemon australis
                                             Penstemon azureus
                                               Penstemon azureus subsp. angustissimus
                                                     [Penstemon azureus var. angustissimus]
                                               Penstemon azureus subsp. azureus
                                                     [Penstemon azureus var. parvulus]
                                                     [Penstemon parvulus]
                                               Penstemon azureus var. azureus
                                             Penstemon baccharifolius
                                             Penstemon barbatus
                                                   [Penstemon barbatus var. coccineus]
                                               Penstemon barbatus subsp. barbatus
                                                     [Penstemon barbatus var. puberulus]
                                               Penstemon barbatus subsp. torreyi
                                                     [Penstemon barbatus var. torreyi]
                                                     [Penstemon torreyi]
                                               Penstemon barbatus subsp. trichander
                                                     [Penstemon barbatus var. trichander]
                                             Penstemon barnebyi
                                             Penstemon barrettiae
                                             Penstemon bicolor
                                               Penstemon bicolor subsp. bicolor
                                               Penstemon bicolor subsp. roseus
                                             Penstemon bracteatus
                                             Penstemon breviculus
                                                   [Penstemon jamesii subsp. breviculus]
                                             Penstemon bryantiae
                                             Penstemon buckleyi
                                             Penstemon caesius
                                             Penstemon caespitosus
                                               Penstemon caespitosus var. caespitosus
                                               Penstemon caespitosus var. desertipicti
                                                     [Penstemon caespitosus subsp. desertipicti]
                                               Penstemon caespitosus var. perbrevis
                                                     [Penstemon caespitosus subsp. perbrevis]
                                             Penstemon calcareus
                                             Penstemon californicus
                                             Penstemon calycosus
                                                   [Penstemon laevigatus subsp. calycosus]
                                             Penstemon canescens
                                                   [Penstemon brittoniorum]
                                                   [Penstemon canescens var. brittoniorum]
                                                   [Penstemon canescens var. typicus]
                                             Penstemon cardinalis
                                               Penstemon cardinalis subsp. cardinalis
                                               Penstemon cardinalis var. regalis
                                                     [Penstemon cardinalis subsp. regalis]
                                             Penstemon cardwellii
                                             Penstemon carnosus
                                             Penstemon caryi
                                             Penstemon centranthifolius
                                             Penstemon cinicola
                                             Penstemon clevelandii
                                               Penstemon clevelandii subsp. clevelandii
                                               Penstemon clevelandii subsp. connatus
                                                     [Penstemon clevelandii var. connatus]
                                               Penstemon clevelandii subsp. mohavensis
                                                     [Penstemon clevelandii var. mohavensis]
                                               Penstemon clevelandii var. clevelandii
                                             Penstemon clutei
                                             Penstemon cobaea
                                                   [Penstemon cobaea subsp. purpureus]
                                                   [Penstemon cobaea subsp. typicus]
                                                   [Penstemon cobaea var. purpureus]
                                             Penstemon comarrhenus
                                             Penstemon compactus
                                                   [Penstemon cyananthus subsp. compactus]
                                                   [Penstemon cyananthus var. compactus]
                                             Penstemon concinnus
                                             Penstemon confertus
                                             Penstemon confusus
                                             Penstemon crandallii
                                               Penstemon crandallii subsp. atratus
                                                     [Penstemon crandallii var. atratus]
                                               Penstemon crandallii subsp. crandallii
                                                     [Penstemon suffrutescens]
                                               Penstemon crandallii subsp. taosensis
                                                     [Penstemon crandallii var. taosensis]
                                                     [Penstemon linarioides subsp. taosensis]
                                               Penstemon crandallii var. glabrescens
                                                     [Penstemon crandallii subsp. glabrescens]
                                               Penstemon crandallii var. procumbens
                                                     [Penstemon crandallii subsp. procumbens]
                                             Penstemon crideri
                                             Penstemon cusickii
                                             Penstemon cyananthus
                                               Penstemon cyananthus var. cyananthus
                                               Penstemon cyananthus var. subglaber
                                                     [Penstemon cyananthus subsp. subglaber]
                                                     [Penstemon holmgrenii]
                                             Penstemon cyaneus
                                             Penstemon cyanocaulis
                                             Penstemon cyathophorus
                                             Penstemon dasyphyllus
                                             Penstemon davidsonii
                                                   [Penstemon menziesii subsp. davidsonii]
                                                   [Penstemon menziesii subsp. thompsonii]
                                               Penstemon davidsonii var. davidsonii
                                                     [Penstemon menziesii subsp. davidsonii]
                                                     [Penstemon menziesii subsp. thompsonii]
                                               Penstemon davidsonii var. menziesii
                                                     [Penstemon davidsonii subsp. menziesii]
                                               Penstemon davidsonii var. praeteritus
                                             Penstemon deamii
                                                   [Penstemon laevigatus var. deamii]
                                             Penstemon deaveri
                                                   [Penstemon virgatus subsp. arizonicus]
                                             Penstemon debilis
                                             Penstemon degeneri
                                             Penstemon deustus
                                               Penstemon deustus var. deustus
                                               Penstemon deustus var. pedicellatus
                                                     [Penstemon deustus subsp. heterander]
                                                     [Penstemon deustus var. heterander]
                                               Penstemon deustus var. suffrutescens
                                               Penstemon deustus var. variabilis
                                                     [Penstemon deustus subsp. variabilis]
                                                     [Penstemon variabilis]
                                             Penstemon digitalis
                                                   [Penstemon laevigatus subsp. digitalis]
                                                   [Penstemon laevigatus var. angulatus]
                                             Penstemon diphyllus
                                                   [Penstemon triphyllus subsp. diphyllus]
                                             Penstemon discolor
                                             Penstemon dissectus
                                             Penstemon distans
                                             Penstemon dolius
                                               Penstemon dolius var. dolius
                                               Penstemon dolius var. duchesnensis
                                                     [Penstemon duchesnensis]
                                             Penstemon dubius
                                             Penstemon eatonii
                                               Penstemon eatonii subsp. eatonii
                                               Penstemon eatonii subsp. undosus
                                                     [Penstemon eatonii var. undosus]
                                               Penstemon eatonii var. eatonii
                                               Penstemon eatonii var. exsertus
                                                     [Penstemon eatonii subsp. exsertus]
                                             Penstemon elegantulus
                                             Penstemon ellipticus
                                                   [Penstemon davidsonii var. ellipticus]
                                             Penstemon eriantherus
                                               Penstemon eriantherus var. argillosus
                                                     [Penstemon whitedii subsp. dayanus]
                                               Penstemon eriantherus var. cleburnei
                                                     [Penstemon cleburnei]
                                               Penstemon eriantherus var. eriantherus
                                               Penstemon eriantherus var. redactus
                                                     [Penstemon whitedii subsp. tristis]
                                               Penstemon eriantherus var. whitedii
                                                     [Penstemon whitedii]
                                             Penstemon euglaucus
                                             Penstemon fendleri
                                             Penstemon filiformis
                                             Penstemon flavescens
                                             Penstemon floribundus
                                             Penstemon floridus
                                               Penstemon floridus var. austinii
                                                     [Penstemon floridus subsp. austinii]
                                               Penstemon floridus var. floridus
                                             Penstemon flowersii
                                             Penstemon franklinii
                                             Penstemon fremontii
                                               Penstemon fremontii var. fremontii
                                             Penstemon fruticiformis
                                               Penstemon fruticiformis subsp. fruticiformis
                                               Penstemon fruticiformis var. amargosae
                                                     [Penstemon fruticiformis subsp. amargosae]
                                               Penstemon fruticiformis var. fruticiformis
                                             Penstemon fruticosus
                                               Penstemon fruticosus var. fruticosus
                                               Penstemon fruticosus var. scouleri
                                                     [Penstemon fruticosus subsp. scouleri]
                                                     [Penstemon fruticosus var. albus]
                                                     [Penstemon scouleri]
                                               Penstemon fruticosus var. serratus
                                                     [Penstemon fruticosus subsp. serratus]
                                             Penstemon gairdneri
                                                   [Penstemon gairdneri subsp. hians]
                                                   [Penstemon gairdneri var. hians]
                                               Penstemon gairdneri var. gairdneri
                                                     [Penstemon gairdneri subsp. hians]
                                                     [Penstemon gairdneri var. hians]
                                               Penstemon gairdneri var. oreganus
                                                     [Penstemon gairdneri subsp. oreganus]
                                                     [Penstemon puberulentus]
                                             Penstemon gibbensii
                                             Penstemon glaber
                                                   [Penstemon alpinus subsp. magnus]
                                               Penstemon glaber var. alpinus
                                                     [Penstemon alpinus]
                                               Penstemon glaber var. brandegeei
                                                     [Penstemon alpinus subsp. brandegeei]
                                                     [Penstemon brandegeei]
                                               Penstemon glaber var. glaber
                                                     [Penstemon alpinus subsp. magnus]
                                             Penstemon glandulosus
                                               Penstemon glandulosus var. chelanensis
                                                     [Penstemon glandulosus subsp. chelanensis]
                                               Penstemon glandulosus var. glandulosus
                                             Penstemon glaucinus
                                             Penstemon globosus
                                             Penstemon goodrichii
                                             Penstemon gormanii
                                             Penstemon gracilentus
                                             Penstemon gracilis
                                                   [Penstemon glaucus]
                                               Penstemon gracilis var. gracilis
                                                     [Penstemon glaucus]
                                               Penstemon gracilis var. wisconsinensis
                                                     [Penstemon gracilis subsp. wisconsinensis]
                                                     [Penstemon wisconsinensis]
                                             Penstemon grahamii
                                             Penstemon grandiflorus
                                                   [Penstemon bradburii]
                                             Penstemon griffinii
                                             Penstemon grinnellii
                                               Penstemon grinnellii subsp. grinnellii
                                               Penstemon grinnellii subsp. scrophularioides
                                                     [Penstemon grinnellii var. scrophularioides]
                                               Penstemon grinnellii var. grinnellii
                                             Penstemon guadalupensis
                                                   [Penstemon guadalupensis var. ernstii]
                                             Penstemon hallii
                                             Penstemon harbourii
                                             Penstemon harringtonii
                                             Penstemon havardii
                                             Penstemon haydenii
                                             Penstemon heterodoxus
                                               Penstemon heterodoxus var. cephalophorus
                                                     [Penstemon heterodoxus subsp. cephalophorus]
                                               Penstemon heterodoxus var. heterodoxus
                                               Penstemon heterodoxus var. shastensis
                                                     [Penstemon shastensis]
                                             Penstemon heterophyllus
                                               Penstemon heterophyllus subsp. australis
                                                     [Penstemon heterophyllus var. australis]
                                               Penstemon heterophyllus subsp. heterophyllus
                                               Penstemon heterophyllus subsp. purdyi
                                                     [Penstemon heterophyllus var. purdyi]
                                                     [Penstemon spinulosus]
                                               Penstemon heterophyllus var. heterophyllus
                                             Penstemon hirsutus
                                                   [Penstemon hirsutus var. minimus]
                                                   [Penstemon hirsutus var. pygmaeus]
                                             Penstemon humilis
                                               Penstemon humilis subsp. brevifolius
                                                     [Penstemon humilis var. brevifolius]
                                               Penstemon humilis subsp. humilis
                                                     [Penstemon cinereus subsp. foliatus]
                                                     [Penstemon cinereus var. foliatus]
                                                     [Penstemon cinereus]
                                                     [Penstemon decurvus]
                                                     [Penstemon humilis var. deserticus]
                                               Penstemon humilis subsp. obtusifolius
                                                     [Penstemon humilis var. obtusifolius]
                                               Penstemon humilis var. humilis
                                             Penstemon idahoensis
                                             Penstemon immanifestus
                                             Penstemon incertus
                                             Penstemon inflatus
                                             Penstemon jamesii
                                                   [Penstemon brevibarbatus]
                                                   [Penstemon jamesii subsp. typicus]
                                             Penstemon janishiae
                                             Penstemon jonesii
                                             Penstemon kingii
                                                   [Penstemon nyeensis]
                                             Penstemon kralii
                                             Penstemon labrosus
                                             Penstemon laetus
                                               Penstemon laetus subsp. laetus
                                               Penstemon laetus subsp. leptosepalus
                                                     [Penstemon laetus var. leptosepalus]
                                               Penstemon laetus subsp. sagittatus
                                                     [Penstemon laetus var. sagittatus]
                                               Penstemon laetus var. laetus
                                             Penstemon laevigatus
                                                   [Penstemon penstemon]
                                             Penstemon laevis
                                             Penstemon lanceolatus
                                                   [Penstemon pauciflorus]
                                             Penstemon laricifolius
                                               Penstemon laricifolius subsp. exilifolius
                                                     [Penstemon laricifolius var. exilifolius]
                                               Penstemon laricifolius subsp. laricifolius
                                               Penstemon laricifolius var. laricifolius
                                             Penstemon laxiflorus
                                                   [Penstemon australis subsp. laxiflorus]
                                                   [Penstemon australis var. ameles]
                                             Penstemon laxus
                                                   [Penstemon watsonii subsp. laxus]
                                             Penstemon leiophyllus
                                               Penstemon leiophyllus var. francisci-pennellii
                                                     [Penstemon francisci-pennellii]
                                               Penstemon leiophyllus var. keckii
                                                     [Penstemon keckii]
                                               Penstemon leiophyllus var. leiophyllus
                                             Penstemon lemhiensis
                                                   [Penstemon speciosus subsp. lemhiensis]
                                             Penstemon lentus
                                               Penstemon lentus var. albiflorus
                                                     [Penstemon lentus subsp. albiflorus]
                                               Penstemon lentus var. lentus
                                             Penstemon leonardii
                                               Penstemon leonardii var. higginsii
                                               Penstemon leonardii var. leonardii
                                               Penstemon leonardii var. patricus
                                                     [Penstemon patricus]
                                             Penstemon leptanthus
                                             Penstemon linarioides
                                               Penstemon linarioides subsp. compactifolius
                                               Penstemon linarioides subsp. linarioides
                                                     [Penstemon linarioides subsp. typicus]
                                               Penstemon linarioides subsp. maguirei
                                               Penstemon linarioides subsp. sileri
                                                     [Penstemon linarioides var. sileri]
                                                     [Penstemon linarioides var. viridis]
                                               Penstemon linarioides var. coloradoensis
                                                     [Penstemon coloradoensis]
                                                     [Penstemon linarioides subsp. coloradoensis]
                                             Penstemon longiflorus
                                                   [Penstemon cyananthus subsp. longiflorus]
                                                   [Penstemon cyananthus var. longiflorus]
                                             Penstemon luculentus
                                                   [Penstemon fremontii var. glabrescens]
                                             Penstemon lyalli
                                             Penstemon lyallii
                                             Penstemon marcusii
                                                   [Penstemon moffatii subsp. marcusii]
                                             Penstemon mensarum
                                             Penstemon menziesii
                                             Penstemon metcalfei
                                             Penstemon mirus
                                             Penstemon miser
                                             Penstemon moffatii
                                               Penstemon moffatii subsp. moffatii
                                               Penstemon moffatii subsp. paysonii
                                             Penstemon monoensis
                                             Penstemon montanus
                                               Penstemon montanus var. idahoensis
                                                     [Penstemon montanus subsp. idahoensis]
                                               Penstemon montanus var. montanus
                                             Penstemon moriahensis
                                             Penstemon multiflorus
                                             Penstemon murrayanus
                                             Penstemon nanus
                                             Penstemon navajoa
                                             Penstemon neomexicanus
                                             Penstemon neotericus
                                             Penstemon newberryi
                                               Penstemon newberryi subsp. berryi
                                                     [Penstemon newberryi var. berryi]
                                               Penstemon newberryi subsp. newberryi
                                               Penstemon newberryi subsp. sonomensis
                                                     [Penstemon newberryi var. sonomensis]
                                               Penstemon newberryi var. newberryi
                                             Penstemon nitidus
                                               Penstemon nitidus var. nitidus
                                               Penstemon nitidus var. polyphyllus
                                                     [Penstemon nitidus subsp. polyphyllus]
                                             Penstemon nudiflorus
                                             Penstemon oklahomensis
                                             Penstemon oliganthus
                                             Penstemon ophianthus
                                                   [Penstemon jamesii subsp. ophianthus]
                                             Penstemon osterhoutii
                                             Penstemon ovatus
                                             Penstemon pachyphyllus
                                               Penstemon pachyphyllus var. congestus
                                                     [Penstemon congestus]
                                                     [Penstemon pachyphyllus subsp. congestus]
                                               Penstemon pachyphyllus var. mucronatus
                                                     [Penstemon mucronatus]
                                               Penstemon pachyphyllus var. pachyphyllus
                                             Penstemon pahutensis
                                             Penstemon pallidus
                                                   [Penstemon arkansanus var. pubescens]
                                                   [Penstemon brevisepalus]
                                             Penstemon palmeri
                                               Penstemon palmeri var. eglandulosus
                                                     [Penstemon palmeri subsp. eglandulosus]
                                               Penstemon palmeri var. macranthus
                                                     [Penstemon macranthus]
                                               Penstemon palmeri var. palmeri
                                                     [Penstemon palmeri subsp. typicus]
                                             Penstemon papillatus
                                             Penstemon parishii
                                             Penstemon parryi
                                             Penstemon parviflorus
                                             Penstemon parvus
                                             Penstemon patens
                                                   [Penstemon confusus subsp. patens]
                                             Penstemon payettensis
                                             Penstemon paysoniorum
                                             Penstemon peckii
                                             Penstemon peirsonii
                                             Penstemon penlandii
                                             Penstemon pennellianus
                                             Penstemon perpulcher
                                                   [Penstemon minidokanus]
                                             Penstemon personatus
                                             Penstemon petiolatus
                                             Penstemon pinifolius
                                             Penstemon pinorum
                                             Penstemon platyphyllus
                                             Penstemon pratensis
                                             Penstemon procerus
                                                   [Penstemon confertus subsp. procerus]
                                                   [Penstemon confertus var. procerus]
                                               Penstemon procerus var. aberrans
                                                     [Penstemon procerus subsp. aberrans]
                                               Penstemon procerus var. brachyanthus
                                                     [Penstemon procerus subsp. brachyanthus]
                                                     [Penstemon tolmiei subsp. brachyanthus]
                                               Penstemon procerus var. formosus
                                                     [Penstemon procerus subsp. formosus]
                                                     [Penstemon tolmiei subsp. formosus]
                                               Penstemon procerus var. modestus
                                                     [Penstemon modestus]
                                                     [Penstemon procerus subsp. modestus]
                                               Penstemon procerus var. procerus
                                                     [Penstemon confertus subsp. procerus]
                                                     [Penstemon confertus var. procerus]
                                               Penstemon procerus var. tolmiei
                                                     [Penstemon procerus subsp. tolmiei]
                                                     [Penstemon tolmiei]
                                             Penstemon pruinosus
                                             Penstemon pseudoparvus
                                             Penstemon pseudoputus
                                                   [Penstemon virgatus subsp. pseudoputus]
                                             Penstemon pseudospectabilis
                                               Penstemon pseudospectabilis subsp. pseudospectabilis
                                                     [Penstemon pseudospectabilis subsp. typicus]
                                               Penstemon pseudospectabilis var. connatifolius
                                                     [Penstemon pseudospectabilis subsp. connatifolius]
                                             Penstemon pudicus
                                             Penstemon pumilus
                                             Penstemon purpusii
                                             Penstemon putus
                                                   [Penstemon virgatus subsp. putus]
                                             Penstemon radicosus
                                             Penstemon ramosus
                                                   [Penstemon pauciflorus]
                                             Penstemon rattanii
                                               Penstemon rattanii subsp. kleei
                                                     [Penstemon rattanii var. kleei]
                                               Penstemon rattanii subsp. rattanii
                                               Penstemon rattanii var. rattanii
                                             Penstemon retrorsus
                                             Penstemon rhizomatosus
                                             Penstemon richardsonii
                                               Penstemon richardsonii var. curtiflorus
                                                     [Penstemon richardsonii subsp. curtiflorus]
                                               Penstemon richardsonii var. dentatus
                                                     [Penstemon richardsonii subsp. dentatus]
                                               Penstemon richardsonii var. richardsonii
                                             Penstemon roezlii
                                                   [Penstemon cinerascens]
                                                   [Penstemon laetus subsp. roezlii]
                                                   [Penstemon laetus var. roezlii]
                                             Penstemon rostriflorus
                                                   [Penstemon bridgesii var. amplexicaulis]
                                                   [Penstemon bridgesii]
                                             Penstemon rubicundus
                                             Penstemon rupicola
                                             Penstemon rydbergii
                                                   [Penstemon hesperius]
                                                   [Penstemon rydbergii var. varians]
                                                   [Penstemon vaseyanus]
                                               Penstemon rydbergii var. aggregatus
                                                     [Penstemon aggregatus]
                                                     [Penstemon rydbergii subsp. aggregatus]
                                               Penstemon rydbergii var. oreocharis
                                                     [Penstemon oreocharis]
                                               Penstemon rydbergii var. rydbergii
                                                     [Penstemon hesperius]
                                                     [Penstemon rydbergii var. varians]
                                                     [Penstemon vaseyanus]
                                             Penstemon saxosorum
                                             Penstemon scapoides
                                             Penstemon scariosus
                                               Penstemon scariosus var. albifluvis
                                                     [Penstemon albifluvis]
                                               Penstemon scariosus var. cyanomontanus
                                               Penstemon scariosus var. garrettii
                                                     [Penstemon garrettii]
                                               Penstemon scariosus var. scariosus
                                             Penstemon secundiflorus
                                               Penstemon secundiflorus var. versicolor
                                                     [Penstemon versicolor]
                                             Penstemon seorsus
                                             Penstemon sepalulus
                                             Penstemon serrulatus
                                             Penstemon smallii
                                             Penstemon spatulatus
                                             Penstemon speciosus
                                                   [Penstemon speciosus subsp. kennedyi]
                                             Penstemon spectabilis
                                               Penstemon spectabilis subsp. spectabilis
                                               Penstemon spectabilis var. spectabilis
                                               Penstemon spectabilis var. subviscosus
                                                     [Penstemon spectabilis subsp. subviscosus]
                                             Penstemon stenophyllus
                                             Penstemon stephensii
                                             Penstemon strictiformis
                                                   [Penstemon strictus subsp. strictiformis]
                                             Penstemon strictus
                                                   [Penstemon strictus subsp. angustus]
                                             Penstemon subglaber
                                             Penstemon subserratus
                                             Penstemon subulatus
                                             Penstemon sudans
                                                   [Penstemon deustus subsp. sudans]
                                             Penstemon superbus
                                             Penstemon tenuiflorus
                                             Penstemon tenuis
                                             Penstemon teucrioides
                                             Penstemon thompsoniae
                                               Penstemon thompsoniae subsp. jaegeri
                                               Penstemon thompsoniae subsp. thompsoniae
                                                     [Penstemon thompsoniae var. desperatus]
                                             Penstemon thurberi
                                                   [Penstemon thurberi var. anestius]
                                             Penstemon tidestromii
                                             Penstemon tiehmii
                                             Penstemon tracyi
                                             Penstemon triflorus
                                               Penstemon triflorus subsp. integrifolius
                                                     [Penstemon helleri]
                                                     [Penstemon triflorus var. integrifolius]
                                               Penstemon triflorus subsp. triflorus
                                             Penstemon triphyllus
                                             Penstemon tubiflorus
                                                   [Penstemon tubaeflorus]
                                               Penstemon tubiflorus var. achoreus
                                                     [Penstemon tubaeflorus var. achoreus]
                                               Penstemon tubiflorus var. tubiflorus
                                                     [Penstemon tubaeflorus var. tubaeflorus]
                                             Penstemon tusharensis
                                                   [Penstemon caespitosus var. suffruticosus]
                                             Penstemon uintahensis
                                             Penstemon unilateralis
                                                   [Penstemon virgatus subsp. asa-grayi]
                                                   [Penstemon virgatus var. asa-grayi]
                                             Penstemon utahensis
                                             Penstemon venustus
                                             Penstemon virens
                                             Penstemon virgatus
                                             Penstemon wardii
                                             Penstemon washingtonensis
                                             Penstemon watsonii
                                             Penstemon whippleanus
                                             Penstemon wilcoxii
                                                   [Penstemon ovatus var. pinetorum]
                                             Penstemon wrightii
                                             Penstemon yampaensis
                                                   [Penstemon acaulis var. yampaensis]
                                     Plantago
                                             Plantago afra
                                                   [Plantago cynops]
                                                   [Plantago psyllium]
                                             Plantago altissima
                                             Plantago americana
                                                   [Littorella americana]
                                                   [Littorella uniflora var. americana]
                                             Plantago arenaria
                                             Plantago argyrea
                                                   [Plantago argyraea]
                                                   [Plantago purshii var. argyraea]
                                                   [Plantago purshii var. argyrea]
                                             Plantago aristata
                                                   [Plantago aristata var. nuttallii]
                                                   [Plantago patagonica var. aristata]
                                             Plantago asiatica
                                               Plantago asiatica subsp. asiatica
                                                     [Plantago major var. asiatica]
                                             Plantago australis
                                               Plantago australis subsp. hirtella
                                                     [Plantago hirtella subsp. galeottiana]
                                                     [Plantago hirtella var. galeottiana]
                                                     [Plantago hirtella var. mollior]
                                                     [Plantago hirtella]
                                             Plantago bigelovii
                                               Plantago bigelovii subsp. bigelovii
                                               Plantago bigelovii subsp. californica
                                                     [Plantago californica]
                                                     [Plantago hookeriana var. californica]
                                                     [Plantago patagonica var. californica]
                                             Plantago canescens
                                                   [Plantago canescens var. cylindrica]
                                                   [Plantago septata]
                                               Plantago canescens subsp. canescens
                                                     [Plantago canescens var. cylindrica]
                                                     [Plantago septata]
                                             Plantago cordata
                                             Plantago coronopus
                                                   [Plantago coronopus subsp. commutata]
                                             Plantago debilis
                                             Plantago elongata
                                               Plantago elongata subsp. elongata
                                                     [Plantago hybrida]
                                               Plantago elongata subsp. pentasperma
                                             Plantago erecta
                                                   [Plantago erecta subsp. rigidior]
                                                   [Plantago hookeriana var. californica]
                                                   [Plantago patagonica var. californica]
                                             Plantago eriopoda
                                                   [Plantago shastensis]
                                             Plantago firma
                                                   [Plantago truncata subsp. firma]
                                             Plantago hawaiensis
                                                   [Plantago hawaiensis var. laxa]
                                             Plantago helleri
                                             Plantago heterophylla
                                             Plantago hookeriana
                                             Plantago insularis
                                             Plantago lanceolata
                                                   [Plantago lanceolata var. sphaerostachya]
                                               Plantago lanceolata subsp. lanceolata
                                                     [Plantago lanceolata var. sphaerostachya]
                                             Plantago limensis
                                             Plantago macrocarpa
                                             Plantago major
                                                   [Plantago halophila]
                                                   [Plantago intermedia]
                                                   [Plantago major subsp. intermedia]
                                                   [Plantago major var. asiatica]
                                                   [Plantago major var. intermedia]
                                                   [Plantago major var. pachyphylla]
                                                   [Plantago major var. pilgeri]
                                                   [Plantago major var. scopulorum]
                                             Plantago maritima
                                               Plantago maritima subsp. juncoides
                                                     [Plantago juncoides var. decipiens]
                                                     [Plantago juncoides var. glauca]
                                                     [Plantago juncoides var. laurentiana]
                                                     [Plantago juncoides]
                                                     [Plantago maritima subsp. borealis]
                                                     [Plantago maritima var. juncoides]
                                                     [Plantago oliganthos var. fallax]
                                                     [Plantago oliganthos]
                                               Plantago maritima var. californica
                                                     [Plantago juncoides var. californica]
                                             Plantago media
                                                   [Plantago media var. monnieri]
                                             Plantago ovata
                                                   [Plantago brunnea]
                                                   [Plantago fastigiata]
                                                   [Plantago gooddingii]
                                                   [Plantago insularis var. fastigiata]
                                                   [Plantago insularis var. scariosa]
                                                   [Plantago minima]
                                               Plantago ovata var. fastigiata
                                                     [Plantago fastigiata]
                                                     [Plantago insularis var. fastigiata]
                                               Plantago ovata var. insularis
                                                     [Plantago brunnea]
                                                     [Plantago gooddingii]
                                                     [Plantago insularis var. scariosa]
                                                     [Plantago minima]
                                             Plantago pachyphylla
                                                   [Plantago glabrifolia]
                                                   [Plantago grayana var. abrotanelloides]
                                                   [Plantago grayana]
                                                   [Plantago hillebrandii]
                                                   [Plantago krajinae]
                                                   [Plantago melanochrous]
                                                   [Plantago muscicola]
                                                   [Plantago pachyphylla var. maviensis]
                                                   [Plantago pachyphylla var. rotundifolia]
                                             Plantago patagonica
                                                   [Plantago patagonica var. breviscapa]
                                                   [Plantago patagonica var. gnaphalioides]
                                                   [Plantago patagonica var. oblonga]
                                                   [Plantago patagonica var. spinulosa]
                                                   [Plantago picta]
                                                   [Plantago purshii var. breviscapa]
                                                   [Plantago purshii var. oblonga]
                                                   [Plantago purshii var. picta]
                                                   [Plantago purshii var. spinulosa]
                                                   [Plantago purshii]
                                                   [Plantago spinulosa]
                                                   [Plantago wyomingensis]
                                             Plantago princeps
                                                   [Plantago princeps var. queleniana]
                                               Plantago princeps var. anomala
                                                     [Plantago princeps var. hirtella]
                                               Plantago princeps var. laxiflora
                                                     [Plantago princeps var. denticulata]
                                               Plantago princeps var. laxifolia
                                                     [Plantago princeps var. denticulata]
                                               Plantago princeps var. longibracteata
                                                     [Plantago princeps var. acaulis]
                                                     [Plantago princeps var. elata]
                                               Plantago princeps var. princeps
                                                     [Plantago princeps var. queleniana]
                                             Plantago pusilla
                                                   [Plantago hybrida]
                                                   [Plantago pusilla var. major]
                                             Plantago rhodosperma
                                             Plantago rugelii
                                               Plantago rugelii var. asperula
                                               Plantago rugelii var. rugelii
                                             Plantago sparsiflora
                                             Plantago subnuda
                                             Plantago truncata
                                             Plantago tweedyi
                                                   [Plantago eriopoda var. tweedyi]
                                             Plantago uliginosa
                                               Plantago uliginosa subsp. uliginosa
                                                     [Plantago intermedia]
                                                     [Plantago major f. scopulorum]
                                                     [Plantago major subsp. intermedia]
                                             Plantago uniflora
                                                   [Littorella uniflora]
                                             Plantago virginica
                                                   [Plantago virginica var. viridescens]
                                             Plantago weldenii
                                                   [Plantago coronopus subsp. commutata]
                                             Plantago wrightiana
                                                   [Plantago hookeriana var. nuda]
                                     Pseudorontium
                                             Pseudorontium cyathiferum
                                                   [Antirrhinum cyathiferum]
                                     Russelia
                                             Russelia equisetiformis
                                                   [Russelia juncea]
                                     Schistophragma
                                             Schistophragma intermedia
                                     Scoparia
                                               Bassia scoparia var. subvillosa
                                                     [Kochia scoparia var. subvillosa]
                                             Scoparia dulcis
                                             Scoparia montevidensis
                                                   [Scoparia flava]
                                                   [Scoparia montevidensis var. glandulifera]
                                     Stemodia
                                             Stemodia durantifolia
                                                   [Capraria durantifolia]
                                                   [Stemodia arizonica]
                                             Stemodia jorullensis
                                             Stemodia lanata
                                                   [Stemodia tomentosa]
                                             Stemodia maritima
                                             Stemodia schottii
                                             Stemodia verticillata
                                                   [Erinus verticillatus]
                                                   [Lendneria verticillata]
                                     Tonella
                                             Tonella floribunda
                                             Tonella tenella
                                                   [Collinsia tenella]
                                     Veronica
                                             Veronica agrestis
                                                   [Pocilla agrestis]
                                                   [Pocilla polita]
                                             Veronica alaskensis
                                                   [Synthyris borealis]
                                             Veronica alpina
                                               Veronica alpina var. nutans
                                             Veronica americana
                                                   [Veronica anagallis]
                                             Veronica anagallis-aquatica
                                                   [Veronica anagallis]
                                                   [Veronica catenata var. glandulosa]
                                                   [Veronica comosa var. glaberrima]
                                                   [Veronica comosa var. glandulosa]
                                                   [Veronica comosa]
                                                   [Veronica connata subsp. glaberrima]
                                                   [Veronica connata var. glaberrima]
                                                   [Veronica connata var. typica]
                                                   [Veronica connata]
                                                   [Veronica glandifera]
                                                   [Veronica lackschewitzii]
                                                   [Veronica micromeria]
                                                   [Veronica salina]
                                               Veronica anagallis-aquatica subsp. anagallis-aquatica
                                             Veronica anagalloides
                                               Veronica anagalloides subsp. anagalloides
                                                     [Veronica salina]
                                             Veronica arvensis
                                             Veronica austriaca
                                             Veronica bachofenii
                                             Veronica beccabunga
                                             Veronica besseya
                                                   [Besseya alpina]
                                                   [Synthyris alpina]
                                             Veronica biloba
                                                   [Pocilla biloba]
                                             Veronica bullii
                                                   [Besseya bullii]
                                                   [Synthyris bullii]
                                                   [Wulfenia bullii]
                                             Veronica californica
                                                   [Synthyris reniformis var. cordata]
                                             Veronica campylopoda
                                             Veronica canbyi
                                                   [Synthyris canbyi]
                                             Veronica catenata
                                             Veronica chamaedrys
                                             Veronica copelandii
                                             Veronica crinita
                                             Veronica cusickii
                                             Veronica cymbalaria
                                                   [Veronica glandulifera]
                                             Veronica daurica
                                                   [Veronica grandis]
                                             Veronica dillenii
                                             Veronica dissecta
                                               Veronica dissecta subsp. dissecta
                                                     [Synthyris cymopteroides]
                                                     [Synthyris dissecta]
                                                     [Synthyris hendersonii]
                                                     [Synthyris pinnatifida var. canescens]
                                               Veronica dissecta subsp. lanuginosa
                                                     [Synthyris lanuginosa]
                                                     [Synthyris pinnatifida var. lanuginosa]
                                             Veronica elliptica
                                                   [Veronica decussata]
                                             Veronica filiformis
                                             Veronica franciscana
                                                   [Hebe franciscana]
                                             Veronica grandiflora
                                                   [Veronica glandifera]
                                             Veronica hederifolia
                                             Veronica idahoensis
                                                   [Synthyris platycarpa]
                                             Veronica longifolia
                                               Veronica longifolia subsp. longifolia
                                                     [Pseudolysimachion longifolium]
                                             Veronica missurica
                                               Veronica missurica subsp. major
                                                     [Synthyris missurica subsp. major]
                                                     [Synthyris reniformis var. major]
                                               Veronica missurica subsp. missurica
                                                     [Synthyris missurica subsp. hirsuta]
                                                     [Synthyris missurica subsp. missurica]
                                                     [Synthyris missurica]
                                               Veronica missurica subsp. stellata
                                                     [Synthyris missurica subsp. stellata]
                                                     [Synthyris stellata]
                                             Veronica oblongifolia
                                                   [Besseya oblongifolia]
                                             Veronica officinalis
                                                   [Veronica officinalis var. tournefortii]
                                                   [Veronica tournefortii]
                                               Veronica officinalis var. officinalis
                                             Veronica paysonii
                                                   [Synthyris paysonii]
                                                   [Synthyris pinnatifida var. pinnatifida]
                                                   [Synthyris pinnatifida]
                                             Veronica peregrina
                                               Veronica peregrina subsp. peregrina
                                                     [Veronica peregrina var. typica]
                                               Veronica peregrina subsp. xalapensis
                                                     [Veronica peregrina var. xalapensis]
                                                     [Veronica sherwoodii]
                                                     [Veronica xalapensis]
                                             Veronica persica
                                                   [Pocilla persica]
                                                   [Veronica buxbaumii]
                                                   [Veronica persica var. aschersoniana]
                                                   [Veronica persica var. corrensiana]
                                             Veronica plantaginea
                                               Veronica plantaginea subsp. plantaginea
                                                     [Besseya arizonica]
                                                     [Besseya plantaginea]
                                             Veronica plebia
                                             Veronica polita
                                                   [Pocilla polita]
                                                   [Veronica didyma]
                                               Veronica polita subsp. polita
                                                     [Veronica didyma]
                                             Veronica prostrata
                                             Veronica ranunculina
                                                   [Synthyris ranunculina]
                                             Veronica regina-nivalis
                                                   [Synthyris reniformis var. reniformis]
                                                   [Synthyris reniformis]
                                             Veronica ritteriana
                                                   [Besseya ritteriana]
                                                   [Synthyris ritteriana]
                                             Veronica rubra
                                                   [Besseya rubra]
                                                   [Synthyris rubra]
                                             Veronica schizantha
                                                   [Synthyris schizantha]
                                             Veronica scutellata
                                                   [Veronica connata]
                                                   [Veronica scutellata var. villosa]
                                             Veronica serpyllifolia
                                               Veronica serpyllifolia subsp. humifusa
                                                     [Veronica humifusa]
                                                     [Veronica serpyllifolia var. borealis]
                                                     [Veronica serpyllifolia var. humifusa]
                                                     [Veronica tenella]
                                                     [Veronicastrum serpyllifolium subsp. humifusum]
                                               Veronica serpyllifolia subsp. serpyllifolia
                                                     [Veronica serpyllifolia var. nummularioides]
                                                     [Veronicastrum serpyllifolium]
                                             Veronica speciosa
                                                   [Hebe speciosa]
                                             Veronica spicata
                                               Veronica spicata subsp. spicata
                                                     [Pseudolysimachion spicatum]
                                                     [Veronica glandulifera]
                                             Veronica spuria
                                               Veronica spuria subsp. spuria
                                                     [Pseudolysimachion spurium]
                                             Veronica stelleri
                                             Veronica teucrium
                                                   [Veronica austriaca subsp. teucrium]
                                                   [Veronica latifolia]
                                             Veronica triphyllos
                                             Veronica undulata
                                             Veronica utahensis
                                                   [Synthyris laciniata subsp. ibapahensis]
                                                   [Synthyris laciniata]
                                                   [Synthyris pinnatifida var. laciniata]
                                             Veronica verna
                                             Veronica wormskjoldii
                                                   [Veronica alpina var. alterniflora]
                                                   [Veronica alpina var. cascadensis]
                                                   [Veronica alpina var. geminiflora]
                                                   [Veronica alpina var. unalaschcensis]
                                                   [Veronica nutans]
                                                   [Veronica wormskjoldii subsp. alterniflora]
                                               Veronica wormskjoldii var. stelleri
                                                     [Veronica stelleri var. glabrescens]
                                               Veronica wormskjoldii var. wormskjoldii
                                                     [Veronica alpina var. alterniflora]
                                                     [Veronica alpina var. cascadensis]
                                                     [Veronica alpina var. geminiflora]
                                                     [Veronica alpina var. terrae-novae]
                                                     [Veronica alpina var. unalaschcensis]
                                                     [Veronica nutans]
                                                     [Veronica stelleri var. glabrescens]
                                                     [Veronica wormskjoldii subsp. alterniflora]
                                             Veronica wyomingensis
                                                   [Besseya cinerea]
                                                   [Besseya wyomingensis]
                                     Veronicastrum
                                             Veronicastrum virginicum
                                                   [Leptandra virginica]
                                                   [Veronica virginica]
                                     Wulfenia