Corylus ferox

Corylus ferox, the Himalayan hazelnut or Tibetan hazelnut, is a species of hazel native to the Himalayas of eastern Asia.

Description
The Himalayan hazelnut is a deciduous tree growing to 32 m tall, with a monoecious leaf that can individually be male or female and some can be both sexes. The leaves are rounded or elliptic, 7 – long and 3 – broad, with a fine and sharply serrated margin and an often truncated apex. The flowers are wind-pollinated catkins and precocious. The male (pollen) catkins are pendulous with numerous solitary flowers and no perianth, while the female catkins are inconspicuous, 6-8 scaly buds and perianth adnate.