kidney vetch, (Anthyllis vulneraria), perennial herb of the pea family (Fabaceae), found in meadows, alpine pastures, and dry places of Europe and northern Africa. It was formerly used as a remedy for kidney disorders but is now frequently cultivated in rock gardens.
Kidney vetch is a low hairy plant that grows to a height of 15–40 cm (6–16 inches). The plant has narrow compound leaves about 1.4–3.8 cm (0.5–1.5 inches) long and yellow-white flowers with wooly bases borne in dense round clusters. The fruit is a small legume.