The stem is more or less ascendent, woody in the lower part, branched, with ascending annual and herbaceous branches (suffruticose) with hairs 3 millimeters long (hence the Latin name hirsutus of this species, meaning hairy).

The small deciduous leaves are trifoliate, ovate to elliptic, hairy on both sides, 18–25 millimetres (0.71–0.98 in) long, with a petiole.

Its legumes (seed pods) are 25–40 millimetres (0.98–1.57 in) long, very hairy and mature in late Summer.

This plant occurs in Turkey, Austria, Czechoslovakia, Hungary, Switzerland, Albania, Bulgaria, former Yugoslavia, Greece, Italy, Romania and France.

These plants can be found on calcareous and arid environments, such as dry meadows and slopes at the edge of the woods.