Older version of Bistorta macrophylla

Bistorta macrophylla

Bistorta macrophylla is a flowering plant species in the genus Bistorta native to mountain regions of West China (Gansu, Guizhou, Henan, Hubei, Qinghai, Shaanxi, Sichuan, Xizang, Tibet, Yunnan), Pakistan, Bhutan, North (Himachal Pradesh, Uttarakhand) and West India (Western Ghats) and Nepal.

In Nepal, its rhizomes are dried to be used as food.^[1]

In India (Uttarakhand), its leaves are used in traditional medicine to treat wounds.^[2] The paste made from the roots is given to infants for stomach problems.^[3]

Vernacular names:

English: red knotweed or large leaved knotweed
Chinese: 圆穗拳参 yuan sui quan shen
Nepali: Dalle ghans, Dalle jhar,^[1] मेfन्जा Monza
India: Kukhri,^[2] Chhota ninayin, Kande-re-ninai^[3]

(-)-Epicatechin-5-O-beta-D-glucopyranoside, (+)-catechin-7-O-beta-D-glucopyranoside, 1-(3-O-beta-D-glucopyranosyl 4,5-dihydroxy-phenyl)-ethanone, (-)-epicatechin, chlorogenic acid and gallic acid can be found in the species.^[4]

References

^ ^a ^b Ethnobotanical studies in Central Nepal: The preservation of plant-foods. N.K Bhattarai, Contribution to Nepalese studies, CNAS, Tribhuvan University, July 1991, Vol. 18, No. 2 (article)
^ ^a ^b Worth of Traditional Herbal System of Medicine for Curing Ailments Prevalent Across the Mountain Region of Uttarakhand, India. Prakash Chandra Phondani, Journal of Applied Pharmaceutical Science, 2011, 01 (09), pages 81-86 (article)
^ ^a ^b Current Concepts In Botany. K. G. Mukerji and C. Manoharachary, 2006 (book)
^ Studies on chemical constituents from Polygonum macrophyllum. Wang S, Wang D and Feng S, Zhong yao cai (Zhongyaocai = Journal of Chinese Medicinal Materials), 2004, 27(6), pages 411-413, PubMed