Native : Temperate Eurasia and Pakistan to Central Nepal
Exotic/Native : Native
World Distribution : Asia, Europe and North America
Literature : Oleg P & Adam S (1984). Flowers of Himalaya. Oxford University Press: 335; Nair, N. G (1977).Flora of Bashahr Himalayas. International Bioscience Publishers: 224; Chowdhery, H. J. & Wadhwa, B. H (1984). Flora of Himachal Pradesh Vol. 1. Published BSI:580