1, Sophora japonica, also known as Sophora japonica, is tall and its pinnate compound leaves are similar to those of Robinia pseudoacacia. The flowers are light yellow, which can be cooked and eaten, and can also be used as traditional Chinese medicine or dye. Unexplored Sophora japonica, commonly known as "Sophora japonica", is a traditional Chinese medicine. Flowering in late summer, different from other tree species, it is an important nectar source plant. Flowers and pods are used as medicine, which have the functions of cooling and astringency, hemostasis and blood pressure reduction; Leaves and root bark have the effects of clearing away heat and toxic materials, and can be used to treat sores. Wood is used for building. Seed kernel contains starch, which can be used for brewing wine or as paste and feed. Bark, branches and leaves, buds, flowers and seeds can all be used as medicine.

2, the panicle is terminal, often pyramid-shaped, up to 30 cm long; Pedicel is shorter than calyx; 2 bracteoles, shaped like stipules; Calyx shallow bell-shaped, about 4 mm long, calyx teeth 5, subequal, round or obtuse triangle, grayish white pubescent, calyx tube subglabrous; Corolla is white or light yellow, flag petal is nearly round, length and width are about 1 1 mm, with short stalk, purple veins, slightly notched apex, shallow heart-shaped base, oval wing petal, length 10 mm, width 4 mm, rounded apex, oblique halberd-shaped base without wrinkles, and broad keel petal. Stamens are nearly separated and persistent; Ovary subglabrous.