||Medicago lupulina L.
||trefoil, black clover, hop clover
||A prostrate summer annual with compound leaflets.
||Cotyledons are ovate and pale green in color. First leaf is simple and ovate.
All subsequent leaves are compound with three leaflets.
|True Leaves and Stem
||Leaves are alternate and conpound wiht three egg-shaped leaflets. Leaflets have very small teeth. Center leaflet on a longer stalk than lateral leaflets.
Stipules are present at the base of the petiole.
|Flower and Fruit
||Flowers are yellow and clover-like in appearance. Fruit is kidney-shaped and brown ( 1.5 - 2 mm long).