Hu decadence, alias: Pu decadence, half contain spring, Ludu Zi, birds crisp, sweet stick, milk Zigen, stone roller, four date, half spring, persimmon mold, March date, goat's milk, Latin name: Elaeagnus pungens Thunb. Hu decadence family, the Hu decadence of the genus of evergreen erect shrubs, 3-4 meters high, with spines, thorns terminal or axillary, 20-40 mm, sometimes shorter, dark brown; young branches slightly compressed prismatic, densely covered with rust-colored scales, old branches scales off black, with glossy. dark brown; young branches slightly compressed angular, densely covered with rust-colored scales, old branches with scales deciduous, black, glossy. Leaves leathery, elliptic or broadly elliptic, sparsely torque-rounded, 5-10 cm long, 1.8-5 cm wide, both ends obtuse or base rounded, margins slightly revolute or crisped, with silvery-white and a few brown scales above when young, glabrescent at maturity, glossy, drying brown-green or brown, densely covered with silvery-white and a few brown scales below, fruiting kernel endocarp with white filamentous cottony hairs; flowering Sept-Dec, fruiting Apr-Jun of following year. Apr-Jun. [1] The fruit is sweet and edible when ripe. Roots, leaves, and fruits are used for medicinal purposes and have some ornamental value. The main chemical constituents of Hu decadent seeds are volatile oil, terpenoids, alkaloids, flavonoids, etc.; pharmacological activities are mainly hypoglycemic, hypolipidemic, anti-lipid oxidation, anti-inflammatory and analgesic, immunity, and so on.