1. Cowpea is nontoxic and can be eaten raw or cooked. Cowpea is rich in nutrition and contains many vitamins and trace elements needed by human body. Eating cowpea is good for health.

2. Cowpea, Leguminosae, annual twining, herbaceous vine or nearly erect herb. Sometimes the top is twisted. Stems subglabrous. Pinnate compound leaves; Stipules lanceolate, linear; Leaflets ovate-rhombic, apex acute, glabrous. Racemes axillary, with long peduncles; Flowers gather at the top of inflorescence, and there are often fleshy dense glands between pedicels; Calyx light green, bell-shaped, flag petal oblate, wing petal slightly triangular, keel petal slightly curved; Ovary linear and hairy. Pods droop, erect or obliquely spread, linear, slightly fleshy and swollen or solid, with many seeds; The seeds are oval or cylindrical or slightly kidney-shaped, yellow-white, dark red or other colors. Flowering and fruiting in May-August.