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Wooly Locoweed
Legume Family : Fabaceae
Latin Name : Astragalus mollissimus
Longevity : Perennial
Season : Warm
Origin : Native
Value : Wildlife – good
Livestock -TOXIC
Remarks :
This plant is highly toxic to livestock. The toxin is
swainsonine, which causes damage to the brain,
liver, digestive organs, placenta and testes. Growth
is 4 – 16 inches from a woody root that gives rise to
stems lying close to the ground. The flowers can be
purple, lavender or yellow, emerging April to June.
The leaves and stems are densely covered with
silver-white hairs, giving it the name, "Wooly".
Adapted to dry, sandy and rocky soils of open
prairies and hillsides.
Source: USDA-NRCS
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