Hippophae gyantsensis

Hippophae gyantsensis is a deciduous tree in the Elaeagnaceae family. Its native range runs from Sikkim to Tibet. It grows in a temperate climate and open mountain sites. In the wild, it seldom occurs below 9,843 feet [3,000 metres]. Plants For A Future lists a height of 49 feet [15 metres]. It also reports a fast growth rate.

The tree needs an open site with direct sun. It cannot grow in shade, but it withstands strong winds. It grows in sandy, loamy, and clay soils. It also copes with soil that holds few nutrients. Suitable soil pH ranges from mildly acid to mildly alkaline. The source lists dry, moist, and wet soil as suitable. Its fuller growing notes warn against sites that become too dry. They also report good growth beside water.

Flowers appear in April, and wind carries the pollen. Each tree bears either male or female flowers. Grow both sexes where seed production is the aim. A lone tree cannot fertilise itself. Seeds ripen from September to October. The fruit can be eaten raw or cooked. It has a sharp, lemon-like taste that many find too sour. Frost or cooking makes it less acid. The fruit is rich in vitamin C and suits preserves.

Root nodules house bacteria that take nitrogen from the air. The tree uses some of this nitrogen for growth. Nearby plants may also gain from this process. Plants For A Future lists woodland canopy and bog garden uses. These uses still need to meet the tree's need for sun. Its wood also serves as fuel. The supplied evidence gives no species-specific pest or disease details. It also provides no hardiness-zone rating.

Plants For A Future records several medicinal uses for this species. These include oils made from fruit, young branches, and leaves. It describes skin treatments for burns and eczema, among other uses. These are reports of use, not proof of safe treatment. The source lists no known hazards for the plant. That does not establish safety for every use or for pets. Seed can be sown in a cold frame in spring. Fresh seed can also be sown there in autumn. Cold treatment may help germination, while half-ripe cuttings can be difficult.