Nemacladus is a genus of flowering plants in the bellflower family known generally as threadplants. Species are native to the southwestern United States and northern Mexico.Kew World Checklist of Selected Plant FamiliesLammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1-675. The Board of Trustees of the Royal Botanic Gardens, Kew.Biota of North America Program, 2013 county distribution maps for member of genus Nemacladus These are annual herbs with very slender, sometimes threadlike, branching stems bearing small five-lobed flowers.
Taxonomy The genus was erected by Thomas Nuttall in 1842. It is placed in the small subfamily Nemacladoideae of the family Campanulaceae.Stevens, P.F. (2001 onwards). "Campanulaceae". Angiosperm Phylogeny Website. Retrieved 2022-04-23.
Species , Plants of the World Online accepted the following species:
Nemacladus australis (Munz) Morin - Baja California Nemacladus bellus Morin & T.J.Ayers Nemacladus breviflorus (McVaugh) Morin & T.J.Ayers Nemacladus calcaratus Morin - Chimney Creek threadplant - California (Inyo + Tulare Cos) Nemacladus californicus (A.Gray) Morin - California (San Bernardino, Kern, Ventura, Santa Barbara, San Luis Obispo Cos) Nemacladus capillaris Greene - much of California, southwestern Oregon Nemacladus eastwoodiae Morin & T.J.Ayers Nemacladus glanduliferus Jeps. - glandular threadplant - Arizona, southern California, Baja California Nemacladus gracilis Eastw. - slender threadplant - California (San Joaquin Valley, Los Angeles Basin) Nemacladus interior (Munz) G.T.Robbins - Sierra threadplant - California, Oregon Nemacladus inyoensis Morin & T.J.Ayers Nemacladus longiflorus A.Gray - California, Arizona, Utah, Baja California Nemacladus matsonii Morin & T.J.Ayers Nemacladus montanus Greene - northern California Nemacladus morefieldii Morin & T.J.Ayers Nemacladus orientalis (McVaugh) Morin - Sonora, Baja California, California, Arizona, Nevada, Utah, southern New Mexico, extreme western Texas Nemacladus parikhiae Morin & T.J.Ayers Nemacladus pinnatifidus Greene - Baja California, southern California Nemacladus ramosissimus Nutt. - smallflower threadplant - Baja California, southern California Nemacladus richardsiae Morin & T.J.Ayers Nemacladus rigidus Curran - stoutstem threadplant - California, Nevada, southeastern Oregon, southwestern Idaho Nemacladus rubescens Greene - California, Nevada, western Arizona, southwestern Utah Nemacladus secundiflorus G.T.Robbins - California Nemacladus sigmoideus G.T.Robbins - sigmoid threadplant - California, Nevada, western Arizona Nemacladus tenuis (McVaugh) Morin - California, Baja California Nemacladus twisselmannii J.T.Howell - California (Kern Co.)
References
External links Jepson Manual Genus Treatment USDA Plants Profile