WFO reports this name as ambiguous, see below; Potentially Bistorta officinalis (a European Bistort)
Common name: Himalayan fleeceflower; Bistort
Family: Polygonaceae
Information: “A common alpine and subalpine species, grows on open slopes, edges and rocky places on higher altitudes from 3000-4800 m, quite variable especially in the habit, leaf and peduncle length.” (Flora of Pakistan 2021)
Related species of bistort: The rhizome is used for making tea and used in the same way as that of the following species, Bistorta amplexicaulis. (MBG-Flora of Pakistan 2021)
Photo: Mesic mid slope, Deosai plateau NE facing edge, 4300 m. Jul 2016. Species ID #99; photos DSC-1027-8. N Hewitt
Sources and additional resources:
GBIF Secretariat (2021). Bistorta affinis (D.Don) Greene. GBIF Backbone Taxonomy. Checklist dataset http://legacy.tropicos.org/Name/50133719?projectid=32 Accessed 18 Jul 2021.
Missouri Botanical Garden (2021). Bistorta affinis (D.Don) Greene. in Tropicos Flora of Pakistan. Online at: http://legacy.tropicos.org/Name/50311235?projectid=32 Accessed 8 Aug 2021.
Polunin, O. and A. Stainton (1999). Flowers of the Himalaya. Oxford University Press, Delhi. Entry 1183 (p. 343; plate 106).
WFO (2021) Bistorta affinis (D.Don) Greene. Published on the Internet;
http://www.worldfloraonline.org/taxon/wfo-0000566095. Accessed on: 18 Jul 2021.