Reynoutria multiflora explained

Reynoutria multiflora (syn. Fallopia multiflora and Polygonum multiflorum) is a species of flowering plant in the buckwheat family Polygonaceae native to central and southern China.^[1] It is known by the English common names tuber fleeceflower and Chinese (climbing) knotweed. It is known as he shou wu in China and East Asia.^[2] Another name for the species is fo-ti,^{[3] [4] [5]} which is a misnomer.^[6]

It can be difficult to prevent the spread of this vining plant and to remove it once established. The leaves are thin and fragile but the stems, although narrow in diameter, can be very strong.

Description

Reynoutria multiflora is a herbaceous perennial vine growing to NaNm (-2,147,483,648feet) tall from a woody tuber. The leaves are NaNcm (-2,147,483,648inches) long and NaNcm (-2,147,483,648inches) broad, broad arrowhead-shaped, with an entire margin. The flowers are NaNmm diameter, white or greenish-white, produced on short, dense panicles up to NaNcm (-2,147,483,648inches) long in summer to mid autumn. The fruit is an achene NaNmm long.^[1]

Traditional medicine

Reynoutria multiflora is listed in the Chinese Pharmacopoeia and is one of the most popular perennial traditional Chinese medicines. Caution must be taken, however, as overconsumption can lead to toxicity-induced hepatitis.^[7]

Chemistry

More than 100 chemical compounds have been isolated from Reynoutria multiflora, and the major components have been determined to be stilbenes, quinones, flavonoids, and others. Its extract contains a stilbene glycoside.^{[8] [9]}

See also

• Japanese knotweed

External links

• line drawing, Flora of China Illustrations vol. 5, fig. 259, 3-5
• Ho-shou-wu: What's in an herb name?

Notes and References

1. Web site: Fallopia multiflora. Flora of China.
2. Bounda. G. A. Feng. Y. 2015. Review of clinical studies of Polygonum multiflorum Thunb. And its isolated bioactive compounds. Pharmacognosy Research. 7. 3. 225–236. 10.4103/0974-8490.157957. 4471648. 26130933 . free .
3. Web site: Fo-ti. WebMD.
4. Lin. Longfei. Ni. Boran. Lin. Hongmei. Zhang. Miao. etc.. 15 January 2015. Traditional usages, botany, phytochemistry, pharmacology and toxicology of Polygonum multiflorum Thunb.: A review. Journal of Ethnopharmacology. 159. 158–183. 10.1016/j.jep.2014.11.009. 7127521. 25449462.
5. Web site: 2006. Polygonum multiflorum and liver reactions. dead. http://webarchive.nationalarchives.gov.uk/20141205150130/http://www.mhra.gov.uk/Howweregulate/Medicines/Herbalmedicines/HerbalSafetyNews/Currentsafetyissues/CON2023590. 2014-12-05. MHRA.
6. Web site: 2016-11-22. He-shou-wu (Polygonum multiflorum) potted plant, organic. 2021-03-31. Strictly Medicinal Seeds. en-US.
7. 22195249 . 2011 . Jung . KA . Min . HJ . Yoo . SS . Kim . HJ . Choi . SN . Ha . CY . Kim . HJ . Kim . TH . Jung . WT . Lee . Ok Jae . Lee . Jong Sil . Shim . Sang Goon . Drug-Induced Liver Injury: Twenty Five Cases of Acute Hepatitis Following Ingestion of Polygonum multiflorum Thunb . 5 . 4 . 493–9 . 10.5009/gnl.2011.5.4.493 . 3240794 . Gut and Liver. 8 .
8. Antioxidant activity of stilbene glycoside from Polygonum multiflorum Thunb in vivo . 10.1016/j.foodchem.2007.03.022 . 104 . 4 . 2007 . Food Chemistry . 1678–1681 . Tang . J.
9. Grech J. N., Li Q., Roufogalis B.D., Duke C.C. Novel Ca2+-ATPase Inhibitors from the Dried Root Tubers of Polygonum multiflorum. J Nat Prod-Lloyda 57(12), 1682-1687, 1994.