3.4. Epilobium brevifolium D. Don (1825: 222) .

Type:— NEPAL. Kathmandu: “in Nepalia superiore”, 1802, Hamilton s.n. (not located) .

Distribution: —U Yarlung Zangbo, M Yarlung Zangbo, Yarlung Zangbo-Brahmaputra, S Hengduan, N Hengduan.

Note: —With two subspecies described as below.

Key to subspecies of Epilobium brevifolium in the Pan-Himalaya region

1a. Leaves base subcordate, petiole 0–2 mm; petals 9–11 mm ....................................................3.4a. E. brevifolium subsp. brevifolium

1b. Leaves base rounded or cuneate, subleathery, petiole 1–4 mm; petals 7–10 mm .............. 3.4b. E. brevifolium subsp. trichoneurum