Ash Valley Milk-Vetch
(Astragalus anxius )
Photo Copyright Susan Cochrane and CNPS
Distribution: Lassen County. Within public lands administered by the Alturas Field Office. Main population center is in Ash Valley (Ash Valley ACEC/RNA). Also occurs on the Modoc National Forest.
Habitat: Shallow soiled barren volcanic outcrops in sagebrush-juniper-Jeffery pine areas at 5,000 to 5,300 feet (1524 - 1615 meters).
Flowering Period: May - June
Similar Plants: Rather distinct. Similar to Tiehm's milkvetch (Astragalus tiehmii) of Washoe County, Nevada, but distributions don't overlap. Similar to Ames milkvetch (Astragalus pulsiferae) it has larger 3/8 - 3/4 inches (8-20 mm) inflated pods, 4-9 seeded, and pale whitish flowers.
Status: BLM Sensitive, California Native Plant Society List 1B.3
Field Office: Alturas
Much branched perennial herb with hairs on lower stems. Leaves 3/4 - 2 inches (2-5 cm) long with 9-13 notched leaflets, 1/16 - 3/16 inches (1.5-5 mm) long. Flowers many, banner 1/4 - 3/8 inches (6.5-10 mm) long, purple striped, wings white. Pod 1/8 inch (3.5-4.5 mm) long, weakly compressed, 2-3 seeded.
- Branched silver wavy haired mat forming perennial.
- Small purple striped flowers.
- Oval 2-3 seeded small pod.