It is a bushy perennial herb producing a hairy, woody stem from a thick, purplish caudex, approaching 75 centimeters in maximum height with slender, leafy branches.

The leaves are each made up of three hairy, glandular, lance-shaped leaflets up to 6 or 7 centimeters long.

The inflorescence is a clustered raceme of several whitish or yellowish pealike flowers.

Each flower has a tubular calyx of sepals and a corolla spreading to about 1.5 centimeters in width.

The fruit is a hairy, gland-speckled, brownish legume around a centimeter long.