Rimrock Milkvetch Plant Information


Rimrock Milkvetch grows in the following 4 states:

Arizona, Colorado, New Mexico, Utah


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The following information is licensed as Creative Commons content from Wikipedia and the USDA.
More information about Rimrock Milkvetch may be found here, or from the US Department of Agriculture.

Astragalus desperatus (common name - rimrock milkweed) is a perennial plant in the legume family (Fabaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States.:120

It is a low growing perennial plant growing from 12 to 4 12 inches (1.3 to 11.4 cm) tall.:120
Compound pinnate leaves are from 12 to 4 12 inches (1.3 to 11.4 cm) long, with 7-17 elliptical to inversely lanceolate leaflets.:120
It blooms from March to August.:120 The inflorescence are from stalk to 5 inches (13 cm) tall, with multiple flowers on short stems from the stalk.:120 Each ink to purple flower has a calyx tube that is bell-shaped and up to 12 inch (1.3 cm) long, and petals to 14 inch (0.64 cm) long.:120 Seed pods are up to 34 inch (1.9 cm) long, elliptical or curved, and covered with stiff hairs.:120
It grows only on the Colorado Plateau (endemic) in mixed desert shrub and pinyon juniper forest communities.:120


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