Psorothamnus
Template:Short description Template:Automatic taxobox
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
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