Biology:Psorothamnus

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Short description: Genus of legumes

Psorothamnus
Psorothamnus fremontii 2.jpg
Psorothamnus fremontii
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: 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

External links

Wikidata ☰ Q5229140 entry