Styphnolobium japonicum Fruit Identity & Part
The tree is Styphnolobium japonicum (L.) Schott, a member of the legume family, Fabaceae, which older sources and the product name call sophora japonica. The part used is the fruit, a beaded, fleshy pod that hangs from the branches in autumn and is dried before extraction. Flowers, leaves and bark are not added to this sophora japonica fruit extract.
The tree is better known for its flower buds as a source of rutin, and the two parts differ in chemistry. The pods contain isoflavones such as genistein and its glycoside sophoricoside, together with flavonoid glycosides and sugars. A specification that says only “Sophora japonica” does not say flower or fruit, which is why the part appears in the name of each page.












