Cassia bicuspidata: Semi-deciduous shrub, 0.5- 1m high, multi-branched. The pinnate compound leaves have 3-4 pairs of leaflets, which are obovate, 2.5-3.5cm long and1-2cm wide, and often have yellow edges. Sophora japonica is a small deciduous tree or shrub, which is a hybrid of China traditional Sophora japonica with Huang Huai and Sophora japonica in Phnom Penh, USA. Plant height is 3-4 meters, with 5-7 pairs of leaflets. Flowers begin to bloom in August every year, with buds like golden beans and flowers like golden butterflies. Pods belong to Leguminosae. Distinguishing them mainly depends on the size of plants. Sophora japonica is bigger than Sophora japonica, and then there are seeds. The seeds of Sophora japonica are a bit like lentils, and Sophora japonica is a bit like cowpea horns.