Astragalus mollissimus Torr.

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Astragalus mollissimus (common name - wooly locoweed) is a perennial plant in the legume family (Fabaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States.

Description

Growth pattern

It is hairy a perennial plant growing from 2 to 34 inches (5.1 to 86.4 cm) tall, from a very short stem.

Leaves and stems

It has hairy stems and leaves. "Mollissumus" means "most soft", referring to the hairy covering of the leaves and stems.  Pinnate leaves are from 3⁄4 to 11 inches (1.9 to 27.9 cm) long, with 15–35 elliptical to oval wooly leaflets. 

Inflorescence and fruit

It blooms from March to August.  The inflorescence are from 3⁄4 to 10 inches (1.9 to 25.4 cm) stalks with 7–20 flowers per stalk.  Each pink to purple or bicolored with white flower has a 1⁄4 to 1⁄2 inch (0.64 to 1.27 cm) hairy calyx with 5 pointed teeth, around a 3⁄4 inch (1.9 cm) corolla with upper petal flares at the end.  The inflated seed pods are 1⁄3 to 1 inch (0.85 to 2.54 cm), egg shaped and hairless to densely hairy. 

Habitat and range

It grows from grasslands to Pinyon juniper woodland communities ranging from Wyoming to Arizona.

Astragalus mollissimus - Wikipedia

 

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