Sweetclover leaflets are thicker than those of alfalfa and have serrations, or indentions, around the border. The petiole, or stem, of the middle leaflet of sweetclover is much longer than those of the other two leaflets. Sweetclover grows taller than alfalfa and can have either yellow or white flowers.
Upright, coarse-stemmed, biennial, cool-season taprooted legume. Grows 4 to 8 feet tall. Leaves have serrations completely around the edge.