Family name: Elaeagnaceae

Protection grade: Grade II

Status: Endangered species. Decentralized distribution, due to serious damage, the number of natural plants has decreased, there are few trees, and the remaining plants are clustered and shrubby, and the distribution range has gradually narrowed.

Protection measures: establish forest farms or protection points, plant trees and expand farming.

Deciduous trees, altitude 1 1m, DBH altitude 1m. The bark is dark gray with deep longitudinal cracks. 1 year-old branches are gray-green, densely covered with silver-gray stellate hairs and scales. Leaves alternate, ovate or ovoid-elliptic, 6-9 cm long and 2-5 cm wide, with blunt apex and densely gray stellate pilose abaxially. Flowers bisexual, yellow-green, apetalous, calyx tube bell-shaped. Fruit drupe, suborbicular or broadly elliptic, with 8 ridges and hairs. The seeds are spindle-shaped and rich in oil. The flowering period is April-May, and the fruiting period is September.

Warm temperate semi-arid climate type, which likes hot summer and little rain, dry and cold winter and spring; With an annual rainfall of 500-600mm, it is light-loving, cold-resistant, wind-resistant, drought-resistant and barren, and often grows on shady slopes, semi-shady slopes or sunny slopes in yellow mud or mountain brown soil, forming a single dominant species community or shrub.

Distribution: Xiangning, Hejin and Yicheng in Shanxi; Huxian County, Shaanxi Province.

Propagation mode: seed propagation or cutting propagation.

Economic value: it is woody oil plants, dense source plants and timber trees, and it is also a tree species for building soil and water conservation forests.