|alfalfa (Medicago sativa)||
alfalfa (Medicago sativa; BEAN FAMILY [Fabaceae]) Bushy, 1-3' perennial. Flowers purple or violet in a short raceme. Leaves compound with 3 finely toothed leaflets, the middle one distinctly stalked. Cultivated for fodder, and escaped to roadsides and waste places; summer flowering. Native of Asia. 
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