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Organism
  Plantae
      Tracheophyta
            Liliopsida
                    Asparagales
                            Asparagaceae
                                     Agave
                                             Agave ajoensis
                                             Agave americana
                                               Agave americana subsp. americana
                                                     [Agave americana mediopicta]
                                                     [Agave americana striata]
                                                     [Agave americana var. marginata]
                                                     [Agave americana var. mediopicta]
                                                     [Agave americana var. striata]
                                               Agave americana subsp. protamericana
                                               Agave americana var. americana
                                               Agave americana var. expansa
                                             Agave angustifolia
                                               Agave angustifolia var. angustifolia
                                                     [Agave rigida]
                                             Agave arizonica
                                             Agave asperrima
                                             Agave chrysantha
                                                   [Agave palmeri subsp. chrysantha]
                                                   [Agave palmeri var. chrysantha]
                                             Agave decipiens
                                             Agave delamateri
                                             Agave deserti
                                               Agave deserti subsp. deserti
                                                     [Agave consociata]
                                               Agave deserti var. deserti
                                                     [Agave consociata]
                                               Agave deserti var. simplex
                                                     [Agave deserti subsp. simplex]
                                             Agave desmettiana
                                             Agave glomeruliflora
                                                   [Agave chisosensis]
                                             Agave gracilipes
                                             Agave havardiana
                                             Agave lechuguilla
                                                   [Agave lophantha var. poselgeri]
                                             Agave longiflora
                                                   [Polianthes runyonii]
                                                   [Runyonia longiflora]
                                             Agave maculata
                                                   [Agave maculosa var. minor]
                                                   [Agave maculosa]
                                                   [Manfreda maculosa]
                                                   [Polianthes maculosa]
                                             Agave mckelveyana
                                             Agave missionum
                                                   [Agave portoricensis]
                                             Agave murpheyi
                                             Agave palmeri
                                             Agave parryi
                                               Agave parryi subsp. neomexicana
                                                     [Agave neomexicana]
                                               Agave parryi subsp. parryi
                                                     [Agave huachucensis]
                                               Agave parryi var. couesii
                                               Agave parryi var. huachucensis
                                                     [Agave huachucensis]
                                             Agave parviflora
                                             Agave phillipsiana
                                             Agave scabra
                                             Agave schottii
                                               Agave schottii var. schottii
                                               Agave schottii var. treleasei
                                             Agave shawii
                                             Agave sileri
                                             Agave sisalana
                                                   [Agave rigida var. sisalana]
                                             Agave toumeyana
                                               Agave toumeyana var. bella
                                                     [Agave toumeyana subsp. bella]
                                               Agave toumeyana var. toumeyana
                                             Agave univittata
                                                   [Agave heteracantha]
                                                   [Agave lophantha var. poselgeri]
                                                   [Agave lophantha]
                                             Agave utahensis
                                               Agave utahensis subsp. kaibabensis
                                                     [Agave kaibabensis]
                                                     [Agave utahensis var. kaibabensis]
                                               Agave utahensis var. eborispina
                                               Agave utahensis var. nevadensis
                                               Agave utahensis var. utahensis
                                             Agave variegata
                                                   [Polianthes variegata]
                                             Agave virginica
                                                   [Agave lata]
                                                   [Agave tigrina]
                                                   [Allibertia intermedia]
                                                   [Polianthes lata]
                                                   [Polianthes virginica]
                                             Agave weberi
                                                   [Agave neglecta]
                                     Albuca
                                             Albuca bracteata
                                                   [Ornithogalum caudatum]
                                     Androstephium
                                             Androstephium breviflorum
                                             Androstephium coeruleum
                                                   [Androstephium caeruleum]
                                     Anthericum
                                     Asparagus
                                             Asparagus aethiopicus
                                                   [Asparagus sprengeri]
                                             Asparagus asparagoides
                                             Asparagus densiflorus
                                                   [Asparagus sprengeri]
                                             Asparagus officinalis
                                               Asparagus officinalis subsp. officinalis
                                             Asparagus setaceus
                                                   [Asparagus plumosus]
                                     Bloomeria
                                             Bloomeria clevelandii
                                                   [Muilla clevelandii]
                                             Bloomeria crocea
                                                   [Allium croceum]
                                               Bloomeria crocea var. aurea
                                                     [Bloomeria aurea]
                                               Bloomeria crocea var. crocea
                                                     [Allium croceum]
                                               Bloomeria crocea var. montana
                                             Bloomeria humilis
                                     Brodiaea
                                             Brodiaea appendiculata
                                             Brodiaea californica
                                               Brodiaea californica subsp. californica
                                               Brodiaea californica subsp. leptandra
                                                     [Brodiaea californica var. leptandra]
                                                     [Brodiaea leptandra]
                                                     [Brodiaea synandra]
                                                     [Hookera leptandra]
                                               Brodiaea californica var. californica
                                             Brodiaea coronaria
                                               Brodiaea coronaria subsp. coronaria
                                                     [Brodiaea grandiflora]
                                             Brodiaea elegans
                                               Brodiaea elegans subsp. elegans
                                                     [Brodiaea elegans var. mundula]
                                               Brodiaea elegans subsp. hooveri
                                             Brodiaea filifolia
                                                   [Hookera filifolia]
                                             Brodiaea insignis
                                                   [Brodiaea synandra var. insignis]
                                             Brodiaea jolonensis
                                             Brodiaea kinkiensis
                                             Brodiaea matsonii
                                             Brodiaea minor
                                                   [Brodiaea grandiflora var. minor]
                                                   [Brodiaea purdyi]
                                                   [Hookera minor]
                                             Brodiaea nana
                                                   [Brodiaea minor var. nana]
                                             Brodiaea orcuttii
                                                   [Hookera orcuttii]
                                             Brodiaea pallida
                                             Brodiaea santarosae
                                             Brodiaea stellaris
                                                   [Hookera stellaris]
                                             Brodiaea terrestris
                                               Brodiaea terrestris subsp. kernensis
                                                     [Brodiaea coronaria var. kernensis]
                                                     [Brodiaea elegans var. australis]
                                               Brodiaea terrestris subsp. terrestris
                                                     [Brodiaea coronaria var. macropoda]
                                     Camassia
                                             Camassia angusta
                                             Camassia cusickii
                                             Camassia howellii
                                             Camassia leichtlinii
                                               Camassia leichtlinii subsp. leichtlinii
                                               Camassia leichtlinii subsp. suksdorfii
                                                     [Camassia leichtlinii var. suksdorfii]
                                                     [Camassia suksdorfii]
                                             Camassia quamash
                                                   [Phalangium quamash]
                                               Camassia quamash subsp. azurea
                                                     [Camassia quamash var. azurea]
                                                     [Quamasia azurea]
                                               Camassia quamash subsp. breviflora
                                                     [Camassia quamash var. breviflora]
                                               Camassia quamash subsp. intermedia
                                                     [Camassia quamash var. intermedia]
                                               Camassia quamash subsp. linearis
                                                     [Camassia quamash var. linearis]
                                               Camassia quamash subsp. maxima
                                                     [Camassia quamash var. maxima]
                                               Camassia quamash subsp. quamash
                                                     [Camassia quamash subsp. teapeae]
                                                     [Phalangium quamash]
                                               Camassia quamash subsp. utahensis
                                                     [Camassia quamash var. utahensis]
                                               Camassia quamash subsp. walpolei
                                                     [Quamasia walpolei]
                                             Camassia scilloides
                                                   [Oxytria texana]
                                                   [Quamasia hyacinthina]
                                                   [Schoenolirion texanum]
                                     Chlorogalum
                                             Chlorogalum angustifolium
                                                   [Laothoe angustifolia]
                                             Chlorogalum grandiflorum
                                             Chlorogalum parviflorum
                                                   [Laothoe parviflora]
                                             Chlorogalum pomeridianum
                                                   [Laothoe pomeridiana]
                                               Chlorogalum pomeridianum var. divaricatum
                                                     [Ornithogalum divaricatum]
                                               Chlorogalum pomeridianum var. minus
                                               Chlorogalum pomeridianum var. pomeridianum
                                                     [Laothoe pomeridiana]
                                             Chlorogalum purpureum
                                                   [Laothoe purpurea]
                                               Chlorogalum purpureum var. purpureum
                                                     [Laothoe purpurea]
                                               Chlorogalum purpureum var. reductum
                                     Chlorophytum
                                             Chlorophytum capense
                                             Chlorophytum comosum
                                     Convallaria
                                             Convallaria keiskei
                                             Convallaria majalis
                                             Convallaria pseudomajalis
                                                   [Convallaria majalis var. montana]
                                                   [Convallaria majuscula]
                                                   [Convallaria montana]
                                     Cordyline
                                             Cordyline australis
                                             Cordyline fruticosa
                                                   [Cordyline terminalis var. ti]
                                                   [Cordyline terminalis]
                                                   [Dracaena terminalis]
                                     Dasylirion
                                             Dasylirion leiophyllum
                                                   [Dasylirion heteracanthum]
                                             Dasylirion texanum
                                             Dasylirion wheeleri
                                     Dichelostemma
                                             Dichelostemma capitatum
                                                   [Brodiaea capitata]
                                                   [Dichelostemma pulchellum var. capitatum]
                                               Dichelostemma capitatum subsp. capitatum
                                                     [Brodiaea capitata]
                                                     [Brodiaea pulchella]
                                                     [Dichelostemma lacuna-vernalis]
                                                     [Dichelostemma pulchellum var. capitatum]
                                                     [Dichelostemma pulchellum]
                                                     [Hookera pulchella]
                                               Dichelostemma capitatum subsp. lacuna-vernalis
                                                     [Dichelostemma lacuna-vernalis]
                                               Dichelostemma capitatum subsp. pauciflorum
                                                     [Brodiaea pulchella var. pauciflora]
                                                     [Dichelostemma pulchellum var. pauciflorum]
                                             Dichelostemma congestum
                                                   [Brodiaea congesta]
                                                   [Brodiaea pulchella]
                                                   [Dichelostemma pulchellum]
                                                   [Hookera pulchella]
                                             Dichelostemma ida-maia
                                                   [Brevoortia ida-maia]
                                                   [Brodiaea ida-maia]
                                             Dichelostemma multiflorum
                                                   [Brodiaea multiflora]
                                             Dichelostemma venustum
                                                   [Brevoortia venusta]
                                                   [Brodiaea venusta]
                                             Dichelostemma volubile
                                                   [Brodiaea volubilis]
                                                   [Dichelostemma californicum]
                                                   [Macroscapa volubilis]
                                     Dracaena
                                             Dracaena acaulis
                                             Dracaena aurea
                                                   [Pleomele aurea]
                                             Dracaena fernaldii
                                                   [Dracaena hawaiiensis]
                                                   [Pleomele fernaldii]
                                             Dracaena forbesii
                                                   [Pleomele forbesii]
                                             Dracaena fragrans
                                             Dracaena konaensis
                                                   [Pleomele hawaiiensis]
                                             Dracaena rockii
                                                   [Pleomele auwahiensis]
                                     Echeandia
                                             Echeandia chandleri
                                                   [Anthericum chandleri]
                                             Echeandia flavescens
                                                   [Anthericum flavescens]
                                                   [Anthericum torreyi]
                                             Echeandia texensis
                                     Endymion
                                     Eremocrinum
                                             Eremocrinum albomarginatum
                                     Furcraea
                                             Furcraea foetida
                                                   [Furcraea gigantea]
                                             Furcraea selloa
                                             Furcraea tuberosa
                                     Hastingsia
                                             Hastingsia alba
                                                   [Schoenolirion album]
                                             Hastingsia atropurpurea
                                                   [Hastingsia bracteosa var. atropurpurea]
                                             Hastingsia bracteosa
                                                   [Schoenolirion bracteosum]
                                               Hastingsia bracteosa var. bracteosa
                                                     [Schoenolirion bracteosum]
                                             Hastingsia serpentinicola
                                                   [Hastingsia serpenticola]
                                     Hesperaloe
                                             Hesperaloe engelmannii
                                                   [Hesperaloe parviflora var. engelmannii]
                                             Hesperaloe funifera
                                             Hesperaloe parviflora
                                               Hesperaloe parviflora var. parviflora
                                     Hesperocallis
                                             Hesperocallis undulata
                                     Hesperoyucca
                                             Hesperoyucca newberryi
                                                   [Yucca newberryi]
                                             Hesperoyucca whipplei
                                                   [Yucca californica]
                                                   [Yucca nitida]
                                                   [Yucca whipplei f. graminifolia]
                                                   [Yucca whipplei subsp. caespitosa]
                                                   [Yucca whipplei subsp. eremica]
                                                   [Yucca whipplei subsp. intermedia]
                                                   [Yucca whipplei subsp. parishii]
                                                   [Yucca whipplei subsp. percursa]
                                                   [Yucca whipplei var. caespitosa]
                                                   [Yucca whipplei var. graminifolia]
                                                   [Yucca whipplei var. intermedia]
                                                   [Yucca whipplei var. parishii]
                                                   [Yucca whipplei var. percursa]
                                                   [Yucca whipplei var. whipplei]
                                                   [Yucca whipplei]
                                     Hosta
                                             Hosta clausa
                                             Hosta lancifolia
                                                   [Hemerocallis japonica]
                                                   [Hemerocallis lancifolia]
                                                   [Hosta japonica]
                                                   [Niobe japonica]
                                             Hosta plantaginea
                                                   [Hemerocallis japonica]
                                                   [Hemerocallis plantaginea]
                                                   [Hosta japonica]
                                             Hosta sieboldii
                                             Hosta ventricosa
                                                   [Bryocles ventricosa]
                                                   [Niobe caerulea]
                                                   [Niobe coerulea]
                                     Hyacinthoides
                                             Hyacinthoides hispanica
                                                   [Endymion hispanicus]
                                                   [Scilla hispanica]
                                             Hyacinthoides massartiana
                                                   [Hyacinthoides variabilis]
                                             Hyacinthoides non-scripta
                                                   [Endymion nonscripta]
                                                   [Scilla nonscripta]
                                     Hyacinthus
                                             Hyacinthus orientalis
                                     Leopoldia
                                             Leopoldia comosa
                                                   [Muscari comosum]
                                     Leucocrinum
                                             Leucocrinum montanum
                                     Liriope
                                             Liriope muscari
                                             Liriope spicata
                                                   [Liriope spicatum]
                                     Maianthemum
                                             Maianthemum bifolium
                                             Maianthemum canadense
                                                   [Maianthemum canadense subsp. interius]
                                                   [Maianthemum canadense var. interius]
                                                   [Maianthemum canadense var. pubescens]
                                                   [Unifolium canadense]
                                             Maianthemum dilatatum
                                                   [Maianthemum bifolium subsp. kamtschaticum]
                                                   [Maianthemum bifolium var. kamtschaticum]
                                                   [Maianthemum kamtschaticum]
                                             Maianthemum racemosum
                                                   [Smilacina racemosa var. typica]
                                                   [Smilacina racemosa]
                                                   [Vagnera racemosa]
                                               Maianthemum racemosum subsp. amplexicaule
                                                     [Maianthemum amplexicaule]
                                                     [Maianthemum racemosum var. amplexicaule]
                                                     [Smilacina amplexicaulis var. glabra]
                                                     [Smilacina amplexicaulis var. jenkinsii]
                                                     [Smilacina amplexicaulis var. ovata]
                                                     [Smilacina amplexicaulis]
                                                     [Smilacina racemosa subsp. amplexicaulis]
                                                     [Smilacina racemosa var. amplexicaulis]
                                                     [Smilacina racemosa var. brachystyla]
                                                     [Smilacina racemosa var. glabra]
                                                     [Smilacina racemosa var. jenkinsii]
                                                     [Vagnera amplexicaulis var. glabra]
                                                     [Vagnera amplexicaulis]
                                               Maianthemum racemosum subsp. racemosum
                                                     [Smilacina ciliata]
                                                     [Smilacina flexicaulis]
                                                     [Smilacina racemosa var. cylindrata]
                                                     [Smilacina racemosa var. lanceolata]
                                                     [Smilacina racemosa var. typica]
                                                     [Smilacina racemosa]
                                                     [Vagnera australis]
                                                     [Vagnera racemosa]
                                             Maianthemum stellatum
                                                   [Convallaria stellata]
                                                   [Smilacina liliacea]
                                                   [Smilacina sessilifolia]
                                                   [Smilacina stellata var. crassa]
                                                   [Smilacina stellata var. mollis]
                                                   [Smilacina stellata var. sessilifolia]
                                                   [Smilacina stellata var. sylvatica]
                                                   [Smilacina stellata]
                                                   [Vagnera liliacea]
                                                   [Vagnera sessilifolia]
                                                   [Vagnera stellata]
                                             Maianthemum trifolium
                                                   [Convallaria trifolia]
                                                   [Smilacina trifolia]
                                                   [Tovaria trifolia]
                                                   [Vagnera trifolia]
                                     Manfreda
                                             Manfreda longiflora
                                                   [Polianthes runyonii]
                                                   [Runyonia longiflora]
                                             Manfreda variegata
                                                   [Polianthes variegata]
                                             Manfreda virginica
                                     Milla
                                             Milla biflora
                                     Muilla
                                             Muilla coronata
                                             Muilla maritima
                                                   [Hesperoscordium maritimum]
                                                   [Muilla serotina]
                                                   [Muilla tenuis]
                                             Muilla transmontana
                                     Muscari
                                             Muscari armeniacum
                                             Muscari atlanticum
                                             Muscari botryoides
                                                   [Hyacinthus botryoides]
                                             Muscari neglectum
                                             Muscari racemosum
                                     Nolina
                                             Nolina arenicola
                                             Nolina atopocarpa
                                             Nolina bigelovii
                                             Nolina brittoniana
                                             Nolina cismontana
                                             Nolina erumpens
                                             Nolina georgiana
                                             Nolina greenei
                                             Nolina interrata
                                             Nolina lindheimeriana
                                             Nolina micrantha
                                             Nolina microcarpa
                                             Nolina parryi
                                                   [Nolina bigelovii subsp. parryi]
                                                   [Nolina bigelovii subsp. wolfii]
                                                   [Nolina bigelovii var. parryi]
                                                   [Nolina bigelovii var. wolfii]
                                                   [Nolina parryi subsp. wolfii]
                                                   [Nolina wolfii]
                                             Nolina texana
                                                   [Nolina affinis]
                                                   [Nolina texana var. compacta]
                                     Ophiopogon
                                             Ophiopogon jaburan
                                     Ornithogalum
                                             Ornithogalum nutans
                                             Ornithogalum pyrenaicum
                                             Ornithogalum thyrsoides
                                             Ornithogalum umbellatum
                                     Polygonatum
                                             Polygonatum biflorum
                                                   [Convallaria biflora]
                                                   [Polygonatum biflorum var. commutatum]
                                                   [Polygonatum biflorum var. hebetifolium]
                                                   [Polygonatum biflorum var. melleum]
                                                   [Polygonatum biflorum var. necopinum]
                                                   [Polygonatum canaliculatum]
                                                   [Polygonatum cobrense]
                                                   [Polygonatum commutatum]
                                                   [Polygonatum melleum]
                                                   [Salomonia cobrensis]
                                               Polygonatum biflorum var. biflorum
                                             Polygonatum latifolium
                                                   [Polygonatum hirsutum]
                                             Polygonatum pubescens
                                                   [Convallaria pubescens]
                                     Sansevieria
                                             Sansevieria forskaliana
                                             Sansevieria hyacinthoides
                                                   [Cordyline guineensis]
                                                   [Sansevieria thyrsiflora]
                                             Sansevieria metallica
                                             Sansevieria trifasciata
                                     Schoenolirion
                                             Schoenolirion albiflorum
                                                   [Oxytria albiflora]
                                                   [Schoenolirion elliottii]
                                             Schoenolirion croceum
                                                   [Oxytria crocea]
                                             Schoenolirion wrightii
                                                   [Oxytria texana]
                                                   [Schoenolirion texanum]
                                     Scilla
                                             Scilla amoena
                                             Scilla forbesii
                                                   [Chionodoxa forbesii]
                                             Scilla luciliae
                                                   [Chionodoxa luciliae]
                                             Scilla nana
                                             Scilla siberica
                                                   [Othocallis siberica]
                                     Triteleia
                                             Triteleia bridgesii
                                                   [Brodiaea bridgesii]
                                             Triteleia clementina
                                                   [Brodiaea clementina]
                                             Triteleia crocea
                                                   [Brodiaea crocea var. modesta]
                                                   [Brodiaea crocea]
                                                   [Seubertia crocea]
                                                   [Triteleia crocea var. modesta]
                                                   [Triteleia modesta]
                                               Triteleia crocea var. crocea
                                                     [Brodiaea crocea]
                                                     [Seubertia crocea]
                                             Triteleia dudleyi
                                                   [Brodiaea dudleyi]
                                             Triteleia grandiflora
                                                   [Brodiaea douglasii var. howellii]
                                                   [Brodiaea douglasii]
                                                   [Brodiaea howellii]
                                                   [Triteleia bicolor]
                                                   [Triteleia grandiflora var. howellii]
                                                   [Triteleia howellii]
                                               Triteleia grandiflora var. grandiflora
                                                     [Brodiaea douglasii]
                                                     [Brodiaea grandiflora]
                                             Triteleia hendersonii
                                                   [Brodiaea hendersonii var. galeae]
                                                   [Brodiaea hendersonii]
                                                   [Brodiaea leachiae]
                                                   [Triteleia hendersonii var. leachiae]
                                               Triteleia hendersonii var. hendersonii
                                                     [Brodiaea hendersonii var. galeae]
                                                     [Brodiaea hendersonii]
                                             Triteleia hyacinthina
                                                   [Brodiaea dissimulata]
                                                   [Brodiaea hyacinthina var. lactea]
                                                   [Brodiaea hyacinthina]
                                                   [Hesperoscordum hyacinthinum]
                                             Triteleia ixioides
                                                   [Calliprora ixioides]
                                                   [Ornithogalum ixioides]
                                               Triteleia ixioides subsp. anilina
                                                     [Brodiaea lutea var. anilina]
                                                     [Brodiaea scabra var. anilina]
                                                     [Calliprora scabra var. anilina]
                                                     [Triteleia ixioides var. anilina]
                                               Triteleia ixioides subsp. cookii
                                                     [Brodiaea lutea var. cookii]
                                                     [Triteleia ixioides var. cookii]
                                               Triteleia ixioides subsp. ixioides
                                                     [Brodiaea lutea]
                                                     [Calliprora ixioides]
                                                     [Ornithogalum ixioides]
                                               Triteleia ixioides subsp. scabra
                                                     [Brodiaea lutea var. scabra]
                                                     [Brodiaea scabra]
                                                     [Calliprora scabra]
                                                     [Triteleia scabra]
                                               Triteleia ixioides subsp. unifolia
                                             Triteleia laxa
                                                   [Brodiaea laxa var. candida]
                                                   [Brodiaea laxa var. nimia]
                                                   [Brodiaea laxa var. tracyi]
                                                   [Brodiaea laxa]
                                                   [Triteleia angustiflora]
                                             Triteleia lemmoniae
                                                   [Brodiaea lemmoniae]
                                             Triteleia lilacina
                                                   [Brodiaea hyacinthina var. greenei]
                                                   [Hesperoscordum lilacinum]
                                                   [Triteleia hyacinthina var. greenei]
                                             Triteleia lilacinum
                                                   [Brodiaea hyacinthina var. greenei]
                                                   [Hesperoscordum lilacinum]
                                                   [Triteleia hyacinthina var. greenei]
                                             Triteleia lugens
                                                   [Brodiaea lugens]
                                                   [Calliprora ixioides var. lugens]
                                             Triteleia montana
                                                   [Brodiaea gracilis]
                                                   [Triteleia gracilis]
                                             Triteleia peduncularis
                                                   [Brodiaea peduncularis]
                                             Triteleia versicolor
                                                   [Brodiaea versicolor]
                                     Triteleiopsis
                                             Triteleiopsis palmeri
                                                   [Brodiaea palmeri]
                                     Yucca
                                             Yucca aloifolia
                                             Yucca angustissima
                                               Yucca angustissima var. angustissima
                                               Yucca angustissima var. avia
                                               Yucca angustissima var. kanabensis
                                                     [Yucca kanabensis]
                                               Yucca angustissima var. toftiae
                                                     [Yucca toftiae]
                                             Yucca arkansana
                                                   [Yucca angustissima var. mollis]
                                                   [Yucca arkansana var. paniculata]
                                             Yucca baccata
                                                   [Yucca baccata var. vespertina]
                                                   [Yucca confinis]
                                                   [Yucca vespertina]
                                               Yucca baccata var. baccata
                                                     [Yucca baccata subsp. vespertina]
                                                     [Yucca baccata var. vespertina]
                                                     [Yucca vespertina]
                                               Yucca baccata var. brevifolia
                                                     [Yucca arizonica]
                                                     [Yucca confinis]
                                                     [Yucca thornberi]
                                             Yucca baileyi
                                                   [Yucca baileyi var. navajoa]
                                                   [Yucca navajoa]
                                                   [Yucca standleyi]
                                               Yucca baileyi var. baileyi
                                                     [Yucca standleyi]
                                             Yucca brevifolia
                                                   [Clistoyucca brevifolia]
                                                   [Yucca brevifolia subsp. jaegeriana]
                                                   [Yucca brevifolia var. herbertii]
                                                   [Yucca brevifolia var. jaegeriana]
                                               Yucca brevifolia var. brevifolia
                                                     [Clistoyucca brevifolia]
                                                     [Yucca brevifolia var. herbertii]
                                             Yucca campestris
                                                   [Yucca intermedia var. ramosa]
                                             Yucca carnerosana
                                                   [Samuela carnerosana]
                                             Yucca constricta
                                             Yucca elata
                                                   [Yucca angustissima var. elata]
                                                   [Yucca elata var. utahensis]
                                                   [Yucca verdiensis]
                                               Yucca elata var. elata
                                               Yucca elata var. verdiensis
                                                     [Yucca verdiensis]
                                             Yucca faxoniana
                                                   [Samuela carnerosana]
                                                   [Samuela faxoniana]
                                                   [Yucca baccata var. macrocarpa]
                                             Yucca filamentosa
                                                   [Yucca concava]
                                                   [Yucca filamentosa var. concava]
                                             Yucca flaccida
                                                   [Yucca concava]
                                                   [Yucca filamentosa f. concava]
                                                   [Yucca filamentosa var. concava]
                                                   [Yucca filamentosa var. smalliana]
                                                   [Yucca freemanii]
                                                   [Yucca louisianensis]
                                                   [Yucca puberula]
                                                   [Yucca smalliana]
                                             Yucca gigantea
                                                   [Yucca guatemalensis]
                                             Yucca glauca
                                                   [Yucca glauca var. gurneyi]
                                               Yucca glauca var. glauca
                                             Yucca gloriosa
                                               Yucca gloriosa var. tristis
                                                     [Yucca recurvifolia]
                                             Yucca harrimaniae
                                                   [Yucca gilbertiana]
                                                   [Yucca harrimaniae subsp. gilbertiana]
                                                   [Yucca harrimaniae var. gilbertiana]
                                               Yucca harrimaniae var. harrimaniae
                                                     [Yucca gilbertiana]
                                                     [Yucca harrimaniae var. gilbertiana]
                                             Yucca intermedia
                                                   [Yucca baileyi subsp. intermedia]
                                                   [Yucca baileyi var. intermedia]
                                                   [Yucca intermedia var. ramosa]
                                             Yucca karlsruhensis
                                             Yucca madrensis
                                             Yucca necopina
                                             Yucca neomexicana
                                                   [Yucca harrimaniae var. neomexicana]
                                             Yucca pallida
                                             Yucca reverchonii
                                             Yucca rostrata
                                                   [Yucca rostrata var. linearis]
                                             Yucca rupicola
                                                   [Yucca tortifolia]
                                             Yucca schidigera
                                                   [Yucca californica]
                                                   [Yucca macrocarpa]
                                                   [Yucca mohavensis]
                                             Yucca schottii
                                                   [Yucca arizonica]
                                                   [Yucca macrocarpa]
                                                   [Yucca puberula]
                                                   [Yucca thornberi]
                                             Yucca sterilis
                                                   [Yucca harrimaniae var. sterilis]
                                             Yucca tenuistyla
                                             Yucca thompsoniana
                                                   [Yucca rostrata var. linearis]
                                             Yucca torreyi
                                                   [Yucca baccata var. macrocarpa]
                                                   [Yucca macrocarpa]
                                             Yucca treculeana
                                                   [Yucca treculeana var. canaliculata]
                                                   [Yucca treculeana var. succulenta]
                                               Yucca treculeana var. treculeana
                                                     [Yucca treculeana var. canaliculata]
                                             Yucca treleasei
                                             Yucca utahensis
                                                   [Yucca elata subsp. utahensis]
                                                   [Yucca elata var. utahensis]