Psorothamnus

Psorothamnus
	Psorothamnus fremontii
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Tribe:	Amorpheae
Genus:	Psorothamnus; Rydb.
Type species
	Psorothamnus emoryi; (A. Gray) Rydb.
Species
	16–49; see text.
Synonyms
	Asagraea Baill.; Psorodendron Rydb.;

Psorothamnus is a genus of plants in the legume family. These are shrubs and small trees. Many are known by the general common name indigo bush. Some are referred to as daleas, as this genus was once included in genus Dalea. These are generally thorny, thickly branched, strongly scented bushes. Most species bear lupinlike raceme inflorescences of bright purple legume flowers and gland-rich pods. Psorothamnus species are native to the southwestern United States and northern Mexico. The genus is paraphyletic and it has been proposed that the genus Psorodendron be reinstated to accommodate sections Xylodalea, Capnodendron, and Winnemucca.^[1]^[2]

Species

Psorothamnus comprises the following species:^[3]^[4]^[5]

Psorothamnus arborescens (A. Gray) Barneby—Mojave indigo bush
- var. arborescens (A. Gray) Barneby
- var. minutifolius (Parish) Barneby
- var. pubescens (Parish) Barneby
- var. simplicifolius (Parish) Barneby
Psorothamnus emoryi (A. Gray) Rydb.—dyebush, Emory's indigo bush
Psorothamnus fremontii (A. Gray) Barneby—Fremont's indigo bush
- var. attenuatus Barneby
- var. fremontii (A. Gray) Barneby
Psorothamnus kingii (S. Watson) Barneby—King's dalea
Psorothamnus nummularius (M.E. Jones) S.L. Welsh
Psorothamnus polydenius (S. Watson) Rydb.—Nevada dalea
Psorothamnus schottii (Torr.) Barneby—Schott's dalea
Psorothamnus scoparius (A. Gray) Rydb.—broom dalea
Psorothamnus spinosus (A. Gray) Barneby—smoketree, smokethorn
Psorothamnus thompsoniae (Vail) S.L. Welsh & N.D. Atwood—Thompson's dalea

References

^ ^a ^b Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk BE, Wojciechowski MF, Lavin M (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot. 89: 58–75. doi:10.1016/j.sajb.2013.05.001.
^ McMahon M, Hufford L (2004). "Phylogeny of Amorpheae (Fabaceae: Papilionoideae)". Am J Bot. 91 (8): 1219–1230. doi:10.3732/ajb.91.8.1219. PMID 21653479.
^ "ILDIS LegumeWeb entry for Psorothamnus". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 7 July 2014.
^ USDA; ARS; National Genetic Resources Program. "GRIN species records of Psorothamnus". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 7 July 2014.
^ "The Plant List entry for Psorothamnus". The Plant List. Royal Botanic Gardens, Kew and the Missouri Botanical Garden. 2013. Retrieved 7 July 2014.

External links

[Cardoso1-1] Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk BE, Wojciechowski MF, Lavin M (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot. 89: 58–75. doi:10.1016/j.sajb.2013.05.001.

[McMahon2-2] McMahon M, Hufford L (2004). "Phylogeny of Amorpheae (Fabaceae: Papilionoideae)". Am J Bot. 91 (8): 1219–1230. doi:10.3732/ajb.91.8.1219. PMID 21653479.

[3] "ILDIS LegumeWeb entry for Psorothamnus". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 7 July 2014.

[4] USDA; ARS; National Genetic Resources Program. "GRIN species records of Psorothamnus". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 7 July 2014.

[PlantList-5] "The Plant List entry for Psorothamnus". The Plant List. Royal Botanic Gardens, Kew and the Missouri Botanical Garden. 2013. Retrieved 7 July 2014.

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