Woolly Locoweed Plant Information


Woolly Locoweed grows in the following 11 states:

Arizona, Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Utah, Wyoming, Nevada, Texas


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

Astragalus millissimus (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.:121

It is hairy a perennial plant growing from 2 to 34 inches (5.1 to 86.4 cm) tall, from a very short stem.:121
It has hairy stems and leaves.:121 "Mollissumus" means "most soft", referring to the hairy covering of the leaves and stems.:121Compound pinnate leaves are from 34 to 11 inches (1.9 to 27.9 cm) long, with 15-35 elliptical to oval and wooly leaflets.:121
It blooms from March to August.:121 The inflorescence are from 34 to 10 inches (1.9 to 25.4 cm) stalks with 7-20 flowers per stalk.:121 Each pink to purple or bicolored with white flower has a 14 to 12 inch (0.64 to 1.27 cm) hairy calyx with 5 pointed teeth, around a 34 inch (1.9 cm) corolla with upper petal flares at the end.:12113 to 1 inch (0.85 to 2.54 cm) seed pods are egg shaped and densely hairy.:121
It grows from grasslands to Pinyon juniper woodland communities ranging from Wyoming to Arizona.:121
It derives its common name from its wooly stems and leaves, and because it makes livestock "go loco" or die from an alkaloid it contains called Iocoine.


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