Astragalus iodanthus var. iodanthus

Humboldt river milkvetch, Humboldt River Milkvetch

Family: Fabaceae · Type: perennial · Native

Humboldt river milkvetch is a California native perennial found in the southeastern Sierra Nevada in Mono County, inhabiting hillsides and valley floors with sagebrush at elevations of 1,300 to 2,600 meters. Flowering from April to June, this plant produces small flowers with keel petals barely extending beyond the wing petals. Growing with a generally glabrous stem structure, it reaches moderate height in its sagebrush habitat. Its leaves are compound, typical of milkvetch species, with multiple leaflets arranged along slender stems. The plant's smooth appearance and subtle floral structure distinguish it in the sparse sagebrush landscapes of eastern California.

Habitat: Hillsides, valley floors, generally with sagebrush

Bloom period: Apr-Jun

Elevation: 1300-2600 m

Bioregions: SNE (Mono Co.)

California counties: Mono, San Bernardino, Lassen

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.