''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.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 ''Nemacladus gracilis'' is an uncommon species of flowering plant in the bellflower family known by the common names slender threadplant or slender nemacladus. It is endemic to California, where it is known from the Transverse Ranges and adjacen ...

'' Eastw. - slender threadplant - California (San Joaquin Valley, Los Angeles Basin) *'' Nemacladus interior'' (Munz) G.T.Robbins - Sierra threadplant - California, Oregon *''

Nemacladus inyoensis ''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 ...

'' 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 ''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 ...

'' Morin & T.J.Ayers *''

Nemacladus montanus ''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 ...

'' Greene - northern California *''

Nemacladus morefieldii ''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 ...

'' 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 ''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 ...

'' Morin & T.J.Ayers *''

Nemacladus pinnatifidus ''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 ...

'' Greene - Baja California, southern California *''

Nemacladus ramosissimus ''Nemacladus ramosissimus'' is a species of flowering plant in the bellflower family known by the common name smallflower threadplant. It is native to the mountains and deserts of the southern half of California and adjacent parts of Baja Califo ...

'' Nutt. - smallflower threadplant - Baja California, southern California *''

Nemacladus richardsiae ''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 ...

'' Morin & T.J.Ayers *''

Nemacladus rigidus ''Nemacladus rigidus'' is a species of flowering plant in the bellflower family known by the common name stoutstem threadplant. It is native to the Great Basin in the United States, where it grows in open areas, often on bare soil. It is a small ...

'' Curran - stoutstem threadplant - California, Nevada, southeastern Oregon, southwestern Idaho *''

Nemacladus rubescens ''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 ...

'' Greene - California, Nevada, western Arizona, southwestern Utah *''

Nemacladus secundiflorus ''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 ...

'' G.T.Robbins - California *''

Nemacladus sigmoideus ''Nemacladus sigmoideus'' is a species of flowering plant in the bellflower family known by the common name sigmoid threadplant. It is native to the mountains and deserts around the intersection of California, Nevada, Arizona, and Baja Californi ...

'' 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 ''Nemacladus twisselmannii'' is a rare species of flowering plant in the bellflower family known by the common names Twisselmann's threadplant and Twisselmann's nemacladus. It is endemic to California, where it is known only from two locations i ...

'' 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