Species Name (as per The IPNI) : Epilobium amurense Hausskn.
Common name : Amur Willow-Herb
Habit : Perennial herb
Habitat : Moist stream banks, wet areas along streams, roadside ditches, disturbed grassy slopes and moist areas in mountains; 600 - 4200 m. altitude
Flower, Fruit : May-October
Distribution :
Uttarakhand : Uttarakhand
Sikkim : East Sikkim (Gangtok) district,North Sikkim (Mangan) district,West Sikkim (Geyzing) district
West Bengal : Darjeeling district
Native : Amur, Bhutan, China, East Himalaya, India, Inner Mongolia, Japan, Khabarovsk, Korea, Kuril Is., Manchuria, Nepal, Primorye, Qinghai, Sakhalin, Taiwan, Tibet, West Himalaya
Exotic/Native : Native
World Distribution : Russian Far East to Himalaya
Literature : Uniyal B.P., Sharma J.R., Choudhery U., Singh D.K. (2007). Flowering Plants of Uttarakhand: A Checklist. Bishen Singh Mahendra Pal Singh: 133; GRIERSON A.J.C. & LONG D.G. (1983). FLORA OF BHUTAN INCLUDING A RECORD OF PLANTS FROM SIKKIM Vol. 2: Part 1. ROYAL BOTANIC GARDEN, EDINBURGH: 319