Melilotus alba Medic. Stems are highly branched, coarse, and glabrous to lightly pubescent. Leaves are alternate and pinnately trifoliolate.
Margins are entire except for the dentate, truncate tip of each leaflet.
Each leaflet is glabrous on the upper surface and has an appressed pubescence on the lower surface. Stipules are 7-10 mm long. Stipules of the lower leaves have one to two teeth at the base. Each raceme has 40 to 120 flowers. It is ovate, glabrous, and has reticular veins.