Rediscovery of Epilobium trichophyllum Hausskn.: a rare and endemic plant from Sikkim Himalaya, India

Main Article Content

David L. Biate
Dinesh K. Agrawala


Epilobium trichophyllum Hausskn., is a rare and endemic plant known only from its type collection [Sikkim (10-12000 ft.), Latung (Lachung), 13.vii.1849, J.D. Hooker & Thomson 7 (K- Royal Botanic Garden, Kew; W - Naturhistorisches Museum Wien, Vienna)].   An unidentified specimen at BSHC [Pradhan & Giri 29191A (BSHC!)] with characteristic villous hairs throughout the plant could be determined as Epilobium trichophyllum Hausskn.  This specimen was collected in 2006 (after a gap of 157 years) from Zema-1 on the way from Lachen to Thangu with similar phyto-climatic condition as that of the type locality.  A brief description, taxonomic history and photograph of the specimens have been provided to confirm its identity.  Its threat status has been assessed as ‘Critically Endangered’ as per IUCN Red List criteria.

Article Details



Aswal, B.S. & B.N. Mehrotra (1994). Flora of Lahaul-Spiti(A Cold Desert in North-West Himalaya). Bishen Singh and Mahendra Pal Singh, Dehradun, 268pp.

Clarke, C.B. (1879). Onagraceae, pp. 582–590. In: Hooker, J.D. (eds.). The Flora of British India. Vol.2. L. Reev & Co., London, 586pp.

Hoch, P.C. (1991). Family Onagraceae, pp. 309–323.In: Grierson, A.J. C. & D.G. Long (eds.) Flora of Bhutan 2(1): 309–323. Royal Botanic Garden, Edinburgh, 320pp.

Haussknecht, H.C. (1884). Monographie der Gattung Epilobium. Jena, viii+318pp.

IUCN (2013). Guidelines for Using the IUCN Red List Categories and Criteria. Version 10. Prepared by the Standards and Petitions Subcommittee. Accessed on: 09/01/2019. Downloadable from

Paul, T.K. (1998). A conspectus of the family Onagraceae in India. Bulletin of the Botanical Survey of India 40(1–4): 1–22.

Raven, P.H. (1962). The genus Epilobium in the Himalayan region. Bulletin of the British Museum (Natural History) 2(12): 327

Srivastava, S.K., & A.N. Shukla (2015). Flora of Cold Desert: Western Himalaya, India. Botanical Survey of India, Kolkata, 264pp.