A very common, small, native annual of dry ground. It has clover-like leaves, each leaflet notched at the apex (which helps to separate this species from the superficially similar black medick (Medicago lupulina) which has a point at the apex. The yellow pea-type flowers are carried in a small round head. When dead they turn brown, droop down, and hide the tiny straight pods.
All names: Trifolium dubium Sibth.; Chrysaspis dubium (Sibth.) Desv.