*Medicago truncatula Gaertn.

Spines rigid, divergent or ± appressed; fruit cylindrical or nearly so, 6–8 mm long, with 4–6 compact coils. Upper surface of leaflets hairy when young. Stipules deeply toothed, with a long entire point. Flowers 1–3; peduncles awned. Fruit cylindrical to truncate-conical, 5–8 mm diam., with 5–8 coils. Pubescent annual. Widespread. Introd. from the Mediterranean. Barrel Medic