Astragalus proimanthus
From Wikipedia, the free encyclopedia
| Astragalus proimanthus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Astragalus |
| Species: | A. proimanthus |
| Binomial name | |
| Astragalus proimanthus Barneby | |
Astragalus proimanthus is a species of flowering plant in the legume family known by the common name precocious milkvetch. It is a narrow endemic, occurring in an area of less than 320 acres near the town of McKinnon in southwestern Sweetwater County, Wyoming.[2] It has four known populations, including one large population of more than 20,000 individuals,[1] and is classified by NatureServe as G1 (critically imperiled)[1] "because of extreme rarity".[2]
Astragalus proimanthus is a stemless perennial forb with densely-clustered leaves consisting of three narrowly oblanceolate to elliptic leaflets. It grows in low cushions of 20–30 cm in diameter. The foliage is silvery-whitish with ascending, twisted or spreading hairs. The flowers are yellow or whitish, sessile, pea-like and up to 17 mm long.[2]
