Adapted to gravelly limestone soils where vegetation in sparse. Prairie hillsides, rocky bluffs, brushy ravines, stream valleys, and roadsides.
This plant is quite conspicuous in the areas where it occurs. The flowers often open before the leaves have fully developed giving the appearance of solid patches of purple.
Very aromatic and omits a pleasant, grape-like smell.
Milkvetch is often confused with the true vetches (Vicia spp.), but lacks the tendrils of vetches.
Is preferred by deer and is occasionally grazed by livestock.
Although closely related to “Locoweeds”, it is not toxic to livestock.
