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''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 Families
/ref>Biota of North America Program, 2013 county distribution maps for member of genus ''Nemacladus''
/ref> These are annual herbs with very slender, sometimes threadlike, branching stems bearing small five-lobed flowers.


Taxonomy

The genus was erected by
Thomas Nuttall Thomas Nuttall (5 January 1786 – 10 September 1859) was an England, English botany, botanist and zoologist who lived and worked in America from 1808 until 1841. Nuttall was born in the village of Long Preston, near Settle, North Yorkshire, S ...
in 1842. It is placed in the small subfamily Nemacladoideae of the family
Campanulaceae The family Campanulaceae (also bellflower family), of the order Asterales, contains nearly 2400 species in 84 genera of herbaceous plants, shrubs, and rarely small trees, often with milky sap. Among them are several familiar garden plants belon ...
.Stevens, P.F. (2001 onwards)
"Campanulaceae"
''Angiosperm Phylogeny Website''. Retrieved 2022-04-23.


Species

,
Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...
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 ''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. These are annual herbs with very slender, sometimes threadlike, bra ...
'' 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 ''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. These are annual herbs with very slender, sometimes threadlike, bra ...
'' (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 ''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. These are annual herbs with very slender, sometimes threadlike, bra ...
'' (McVaugh) Morin - California, Baja California *'' Nemacladus twisselmannii'' J.T.Howell - California (Kern Co.)


References


External links


Jepson Manual Genus Treatment

USDA Plants Profile
Campanulaceae Campanulaceae genera Flora of North America {{Campanulaceae-stub