Biology:Astragalus iodanthus

From HandWiki
Short description: Species of legume

Astragalus iodanthus
Astragalus iodanthus var. iodanthus.jpg
var. iodanthus

Apparently Secure (NatureServe)
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Astragalus
Species:
A. iodanthus
Binomial name
Astragalus iodanthus
S.Wats.

Astragalus iodanthus is a species of flowering plant in the legume family, Fabaceae, known by the common names Humboldt River milkvetch[1] and violet milkvetch.[2] It is native to the western United States, where its range includes California , Idaho, Nevada, Oregon, and Utah.[2] It grows on hills and in valleys[3] in barren sandy and volcanic soils[4] in habitat such as sagebrush.[5]

This perennial herb produces several prostrate stems up to 40 centimeters long. The compound leaves are made up of 9 to 21 rounded or teardrop-shaped leaflets each up to 1.8 centimeters long. The inflorescence is a raceme of flowers in shades of reddish purple or white to cream with a purple tip on the keel petal. There are up to 25 flowers in a raceme, and they are crowded when first blooming but spread out over time. The fruit is a legume pod up to 4 centimeters long, becoming dark, mottled, and papery to leathery with age.[6][7]

There are two varieties of this species:

  • var. diaphanoides (snake milkvetch) has a denser coating of rough hairs, particularly along the leaf edges and midrib.[4]
  • var. iodanthus is less hairy, having rough hairs mainly in the inflorescence.[3]

References

Wikidata ☰ Q14927041 entry