World Distribution : Africa, Arabian Peninsula, Himalaya to South China and Indo-China, Taiwan, Sumatera and Albania, France, Poland
Literature : Uniyal B.P., Sharma J.R., Choudhery U., Singh D.K. (2007). Flowering Plants of Uttarakhand: A Checklist. Bishen Singh Mahendra Pal Singh: 154; GRIERSON A.J.C. & LONG D.G. (1983). FLORA OF BHUTAN INCLUDING A RECORD OF PLANTS FROM SIKKIM Vol. 2: Part 3. ROYAL BOTANIC GARDEN, EDINBURGH: 1568