About Pediomelum castoreum (S.Watson) Rydb.
Pediomelum castoreum, (S.Watson) Rydb., is a flowering plant species in the legume family, with the common names beaver Indian breadroot and beaver dam breadroot. This species is native to the desert regions around where California, Nevada, and Arizona meet. It grows in local habitat there, including disturbed areas. It is a perennial herb that has no stem or only a short stem that lies mostly underground, so most of the plant stays at ground level. Its leaves are compound; each leaf is made up of five or six oval leaflets that may grow over 4 centimeters long. Each leaf grows from a long petiole. The inflorescence is a raceme holding several blue or purple pealike flowers, each roughly one centimeter long. The fruit is a hairy oval legume pod, tipped with a long, curved beak. The pod holds ridged gray seeds, each about 6 millimeters long.