overviewStyphnolobium japonicum (L.) Schott, Japanese pagoda tree (Chinese scholar tree, pagoda tree; syn. Sophora japonica) is a tree species in the family Faboideae from the pea family of Fabaceae.
Previously included in a broader interpretation of the genus Sophora. Styphnolobium species differ from SOPHORA in that they lack the ability to form symbioses with Rhizobia (nitrogen-fixing bacteria) on their roots. It also differs from the genus Calia (mescalbeans) in the endless leaves and flowers, terminal, racemes. The leaves are alternate, pinnate and black locust-like drooping racemes flowers with 9–21 leaflets.
Deciduous tree up to 25 m high, native to China, has been cultivated as a garden tree and street tree in Japan since ancient times. Enju is a transformation of its old name Ennis, and Ennis is now recognized as Inu Enju. The leaves are complex, consisting of an odd number of 9-15 leaflets 15-25 cm long. The leaflets are oval, 2.5 to 4 cm long, with slightly white hairs on the back of the leaves. The flower is a pale yellow butterfly-shaped flower 12-15 mm long and has a large cone. The coral is bell-shaped and oblique, and one of the bases is swollen. Ten organ organs are dead and the length is the same. Legumes have a cylindrical shape, narrowed between the seeds and slightly beaded 5 to 10 cm long and hanging from the branches. The pericarp is yellowish green, slightly fleshy, contains mucus, is difficult to dry, and has hairs. Put 1 to 4 seeds inside. Wakaba is boiled for food and used as a tea substitute. In traditional Chinese medicine, the bud is called “kaika” (or kaibei). In addition to flavonoids and rutin, it contains triterpenoids and is used as a hemostatic, and legumes are called fruit (or horn) and are used as a hemostatic and glaze. It contains pigments such as genistein, yellow buds and burgundy and bark dyes. The skin replaces soap, and wood is used for construction. It is also a honey source plant.
Hiroyoshi Ohashi + Aya Nitta