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Astragalus mollissimus (Purple locoweed)
Bransford, W.D. and Dolphia

Astragalus mollissimus

Astragalus mollissimus Torr.

Purple locoweed, Woolly loco, Woolly locoweed, Woolly milkvetch, Wooly loco, Wooly locoweed

Fabaceae (Pea Family)


USDA Symbol: asmo7

USDA Native Status: L48 (N)

Woolly loco gets its name from the many soft hairs that cover its leaves and stems. The plant is 1218 inches tall, with many sprawling branches that turn upward, forming a rounded clump. Leaves are 610 inches long, made up of 2030 leaflets, thickly covered with silky hairs. The flowers are on the upper 24 inches of the stem and grow in clusters. They have 5 sepals and 5 lavender-to-purple petals (248).


Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Pinnate
Size Class: 0-1 ft.

Bloom Information

Bloom Color: Purple
Bloom Time: Mar , Apr , May


USA: AZ , CO , KS , NE , NM , NV , OK , SD , TX , UT , WY


Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.

Search More Titles in Bibliography

Additional resources

USDA: Find Astragalus mollissimus in USDA Plants
FNA: Find Astragalus mollissimus in the Flora of North America (if available)
Google: Search Google for Astragalus mollissimus


Record Last Modified: 2007-01-01
Research By: TWC Staff

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