NEON Biorepository Data Portal

Mentzelia
Family: Loasaceae Max Licher	VPAP Gleason & Cronquist Resources JANAS 30(2) PLANTS: Annuals or perennials, ours herbaceous to suffrutescent; hairs often barbed, not stinging. LEAVES: sessile (including those with blades narrowing gradually to the base) or distinctly petiolate; blades linear, lanceolate to elliptic, ovate or oblanceolate; margins dentate to pinnately lobed, sometimes crenate or entire. PLANTS: Annuals or perennials, ours herbaceous to suffrutescent; hairs often barbed, not stinging. INFLORESCENCE: cymose. FLOWERS: subtended by O-several, leaf-like to linear bracts; calyx mostly persistent, the lobes lanceolate to subulate; petals distinct or basally coherent and adherent to filaments, deciduous, white to yellow or orange; stamens 10-ca. 300, shorter than the petals, free or basally coherent, those of outer whorls often with broad filaments and often forming petaloid staminodia; pistil (in ours) 3-carpellate, exceptionally more; stigmas 3 appressed lobes but appearing as 3 grooves, sometimes separating in age. CAPSULES: apically dehiscent by 3 valves. SEEDS: 10-many, rarely fewer, 1-4 mm long, parietal; testa diversely sculptured, smooth, reticulate or striate at low magnification; endosperm present. X = 14. NOTES: At least 100 spp.; New World. (for C. Mentzel). The sections are sufficiently distinctive that several have occasionally been treated as separate genera. Fruit measurements (and the term -body-) refer to the seed-containing portion, exclusive of the calyx lobes when these persist. Specimens that are depauperate or that lack mature fruits and seeds may be impossible to identify. REFERENCES: Christy, Charlotte M. 1998. Loasaceae. J. Ariz. - Nev. Acad. Sci. 30(2): 96. Vascular plants of NE US and adjacent Canada Hypanthium ovoid to cylindric or obconic; sep 5; pet 5-10; stamens 10-200, distinct or connate into fascicles; ovules 2-many on 3 parietal placentas; style 3-lobed; fr a capsule; annual or perennial herbs or shrubs, armed with stiff, barbed hairs, with alternate, serrate to pinnatifid lvs and 1-many often large, white to yellow or orange fls terminating the branches. (Nuttallia) 50, New World. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: Moab NEON (MOAB) plants - Southern Rockies & Colorado Plateau (D13) \|\| << 1 - 50 taxa >> Mentzelia affinis Map not Available Mentzelia albescens Images not available Map not Available Mentzelia albicaulis Map not Available Mentzelia argillicola Images not available Map not Available Mentzelia argillosa Images not available Map not Available Mentzelia aspera Images not available Map not Available Mentzelia asperula Map not Available Mentzelia candelariae Images not available Map not Available Mentzelia canyonensis Images not available Map not Available Mentzelia chrysantha Images not available Map not Available Mentzelia collomiae Images not available Map not Available Mentzelia congesta Images not available Map not Available Mentzelia conspicua Map not Available Mentzelia crocea Images not available Map not Available Mentzelia decapetala Images not available Map not Available Mentzelia densa Images not available Map not Available Mentzelia desertorum Images not available Map not Available Mentzelia dispersa Images not available Map not Available Mentzelia eremophila Images not available Map not Available Mentzelia floridana Images not available Map not Available Mentzelia flumensevera Images not available Map not Available Mentzelia goodrichii Images not available Map not Available Mentzelia gracilenta Map not Available Mentzelia hirsutissima Images not available Map not Available Mentzelia hispida Images not available Map not Available Mentzelia hualapaiensis Images not available Map not Available Mentzelia humilis Map not Available Mentzelia incisa Images not available Map not Available Mentzelia involucrata Map not Available Mentzelia inyoensis Images not available Map not Available Mentzelia isolata Map not Available Mentzelia jonesii Map not Available Mentzelia laciniata Images not available Map not Available Mentzelia laevicaulis Map not Available Mentzelia lagarosa Images not available Map not Available Mentzelia leucophylla Images not available Map not Available Mentzelia librina Images not available Map not Available Mentzelia lindheimeri Images not available Map not Available Mentzelia lindleyi Images not available Map not Available Mentzelia linearifolia Images not available Map not Available Mentzelia longiloba Images not available Map not Available Mentzelia marginata Images not available Map not Available Mentzelia memorabilis Images not available Map not Available Mentzelia mexicana Images not available Map not Available Mentzelia micrantha Images not available Map not Available Mentzelia mollis Images not available Map not Available Mentzelia monoensis Images not available Map not Available Mentzelia montana Map not Available Mentzelia multicaulis Images not available Map not Available Mentzelia multiflora Map not Available