Rhododendron erosum

Rhododendron erosum (啮蚀杜鹃) is a species of flowering plant in the family Ericaceae, native to eastern Bhutan, southern Tibet, and southern Xizang, China, where it grows at altitudes of 3000-3700 m. It is a hardy evergreen shrub or small tree that grows to 4.5-6 m in height, with leathery leaves that are elliptic to obovate-oblong, 8–10.5 by 3.7–4.5 cm in size. The blood-red flowers are borne in a tight truss, in April and May.