Ground plum (Astragalus crassicarpus)

Ground plum photograph

Sprawling low perennial with numerous trailing stems and pinnately compound leaves. Leaflets slightly folded, hairy beneath. Large violet to white flowers clustered at branch tips. Fruit 1 inch across, purplish, juicy, edible when immature in July, dries to brown husk. Dry calcareous prairie. Blooms May-June. Important food of prairie-dwelling humans and other animals.