Product Review

He huan pi is a deciduous tree that can reaches up to 10 meters. Trunks are gray and black. Branchlets are glabrous but angular. Even pinnately compound leaf is alternate, 9 to 23cm in length, and with 3 to 6cm total petiole, 5 to 15 pairs of pinnae, and 11 to 30 pairs of sessile leaflets. Capitulum grows from branches and with pubescent peduncles, pale red flowers, about 2mm tubular calyx, funnel-shaped corolla, numerous stamens, and superior ovary. Pods are flat, 8 to 15cm long, 1 to 2.5cm wide, brown, and pubescent when young and falling off later. Seeds are oval, flat, and brown. Flowering period is from June to August and fruiting period is from August to October. Its habitats include slopes and roadsides. In addition, it is often cultivated in gardens. Main chemical constituents in bark are saponins, tannins, flavonoids, a variety of lignans and their glycosides, and glucosides of pyripropanol derivatives.