1、 Leaf difference

The leaves of green beans grow in opposite single leaves, and the shape is similar to the heart shape. The terminal leaflets are broad ovate or rhombic ovate, about 4 to 16 cm long and about 3 to 11 cm wide. The apex of the leaves is sharp, the base is wide wedge-shaped or round, the veins on both sides are villous, and the long leaflets on the side are oblique

Beans have pinnately compound leaves with three leaflets. The stipules are lanceolate, about 1 cm long. The leaflets are oval rhombic, about 5 to 15 cm long and about 4 to 6 cm wide. The apex of the leaves is sharp, and sometimes the leaves are lavender

2、 Flower difference

A raceme of green beans with flowers growing at the top of the total pedicel, oblique bracts, white, yellow, lavender or purple corolla, about 1.5 to 2 cm long

The raceme of beans is axillary, with 2 to 6 flowers clustered at the top of the inflorescence. The Corolla is yellowish white with cyan purple, about 2 cm long

3、 Fruit difference

Four season pods are strip-shaped, slightly inflated, 10 to 15 cm long and about 1 cm wide, glabrous, straight or slightly curved in shape. 4 to 8 seeds

The pods of beans are drooping, linear, erect or obliquely spreading, about 7.5 to 70 cm long and about 6 to 12 mm wide. There are many seeds, long elliptic or cylindrical