1、 Blade difference

The leaflets of Sophora japonica have 8-12 pairs, opposite or near opposite, paper, oblong or long oval, blunt at both ends, awn tip at the apex, depression above the midvein and obvious uplift below. The Yellow locust has 7-9 pairs of leaflets, which are long oval or oval in shape, and the two are similar in size

2、 The difference between flowers

Sophora flavescens is a raceme, grows at the top, has a large number of dense flowers, the bracts are drill shaped, the calyx is bell shaped, and the Corolla is yellow and nearly round. The raceme of Sophora japonica grows in the leaf axil at the upper part of the branch. The bracts are oval and oblong, and the sepals are oval. Their flower colors are almost the same. The petals are bright yellow to dark yellow, oval to obovate