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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 â€˜Critically Endangeredâ€™ as per IUCN Red List criteria.
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