| Astragalus oxyphysus | |
|---|---|
|   | |
|  Scientific classification   | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Fabales | 
| Family: | Fabaceae | 
| Subfamily: | Faboideae | 
| Genus: | Astragalus | 
| Species: | A. oxyphysus  | 
| Binomial name | |
| Astragalus oxyphysus | |
Astragalus oxyphysus is a species of milkvetch known by the common name Mt. Diablo milkvetch or Stanislaus milk-vetch. It is endemic to central California, where it grows in dry grassland and scrub habitat in the Central Valley and the adjacent Inner Coast Ranges and Sierra Nevada foothills. [2]
Astragalus oxyphysus is a robust perennial herb forming clumps of erect, leafy stems up to 80 centimeters tall. Leaves are up to 17 centimeters long and are made up of many lance-shaped leaflets. The plant flowers in large inflorescences of up to 65 flowers each.
The individual flower is cream-colored and at least 2 centimeters long. The fruit is a hanging legume pod up to 4 centimeters long. It is inflated but narrow and dries to a thin, almost transparent papery texture.