Vicia, a perennial herb, 30-100 cm high. The corolla is red or nearly purple to light pink, thin white; the flag petals are nearly violin-shaped, the ovary is linear, glabrous, and the connection between the style and the ovary is nearly 90%. Angle; there is a bunch of yellow beard on the abaxial surface of the stigma. The pods are wide and round, nearly diamond-shaped, about 2.1 cm in length and O.D. in width. 5-0.7 cm, bright black when mature, slightly curved. The seeds are oblate and spherical, the epidermis is brown and spotted, and the length of the hilum is equivalent to 2/3 of the circumference of the seed. Flowering in June, fruiting period from 7 to August.
