1、 Plant difference
Sweet beans are annual twining herbs, about 0.9 to 1.8 meters high, and all plants are hairless p>
Pea is an annual climbing herb, about 0.5 to 2 meters high. The whole plant is green, smooth and hairless p>
2、 Leaf difference
Sweet bean leaflets are oblong or ovoid, about 3 to 5 cm long and about 1 to 2 cm wide, entire p>
Pea leaves have 4 to 6 leaflets, oval, about 2 to 5 cm long and about 1 to 2.5 cm wide p>
3、 Flower difference
Sweet bean flowers are solitary or 1 to 3 arranged in racemose axillary, and the Corolla is white or purplish red p>
Pea flowers are solitary in leaf axils, or several flowers are arranged in racemes, usually white and purple p>
4、 Fruit difference
The pod of sweet bean is long and oval, about 5 to 10 cm long. There is a paper lining in the pod, and the seeds are round, usually 2 to 10, green p>
Pea pods are swollen, long oval, about 2.5 to 10 cm long and about 0.7 to 14 cm wide. The top is sharp, and the seeds are round and green p>