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Bistorta amplexicaulis

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Persicaria amplexicaulis
Scientific classification
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P. amplexicaulis
Binomial name
Persicaria amplexicaulis
Synonyms[1]
  • Polygonum amplexicaule D. Don 1825
  • Bistorta amplexicaulis (D. Don) Greene

Persicaria amplexicaulis, the red bistort[2] or mountain fleece, is a species of flowering plant in the buckwheat family, native to China, the Himalayas, and Pakistan. It is a damp-loving herbaceous perennial growing to 1.2 m (4 ft) tall and wide, with heart-shaped pointed leaves, downy beneath, and narrow spikes of rose-red or white flowers in summer.[3][4]

The specific epithet amplexicaulis means "clasping the stem", and refers to the leaves' habit of growing around the stem.[5]

Numerous cultivars have been developed for garden use, including 'Firetail'.[6]

Methyl caffeate, ethyl caffeate and other phenolic compounds can be found in Polygonum amplexicaule var. sinense (Chinese name: Xuesanqi), a widely distributed medicinal plant in China.[7]

References

  1. ^ Tropicos, Persicaria amplexicaulis (D. Don) Ronse Decr.
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17.
  3. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  4. ^ Flora of China, Polygonum amplexicaule D. Don, 1825. 包茎拳参 bao jing quan shen
  5. ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  6. ^ "RHS Plant Selector - Persicaria amplexicaulis 'Firetail'". Retrieved 25 May 2013.
  7. ^ Isolation, identification and determination of methyl caffeate, ethyl caffeate and other phenolic compounds from Polygonum amplexicaule var. sinense. Meixian Xiang, Hanwen Su, Jinyue Hu and Yunjun Yan, Journal of Medicinal Plants Research Vol., 4 May 2011, 5(9), pages 1685–1691 (abstract)