Koenigia weyrichii

Koenigia weyrichii (synonym Persicaria weyrichii),[1] the Chinese knotweed[2] or Weyrich's knotweed, is a large, perennial, rhizomatous herb native to East Asia.

Koenigia weyrichii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Koenigia
Species:
K. weyrichii
Binomial name
Koenigia weyrichii
(F.Schmidt) T.M.Schust. & Reveal[1]
Synonyms[1]
  • Aconogonon pseudoajanense Barkalov & Vyschin
  • Aconogonon savatieri (Nakai) Tzvelev
  • Aconogonon savatieri var. iturupense (Mishurov) Tzvelev
  • Aconogonon weyrichii (F.Schmidt) H.Hara
  • Aconogonon weyrichii subsp. savatieri (Nakai) Tzvelev
  • Persicaria weyrichii (F.Schmidt) H.Gross
  • Pleuropteropyrum iturupense (Mishurov) Soják
  • Pleuropteropyrum savatieri (Nakai) Koidz. ex Nakai
  • Pleuropteropyrum weyrichii (F.Schmidt) H.Gross
  • Polygonum iturupense Mishurov
  • Polygonum weyrichii F.Schmidt
  • Reynoutria weyrichii (F.Schmidt) Moldenke

It is one of the parents of the cultivated hybrid Koenigia × fennica, the other being Koenigia alpina.[3][4]

References
  1. "Koenigia weyrichii (F.Schmidt) T.M.Schust. & Reveal". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-02-24.
  2. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  3. "Aconogonon × fennicum Reiersen". The International Plant Names Index. Retrieved 2020-05-21.
  4. Jonsell, Beagt (1999). "Additional nomenclatural notes to Flora Nordica (Lycopodiaceae - Polygonaceae)". Nordic Journal of Botany. 19 (2): 385–387. doi:10.1111/j.1756-1051.1999.tb01219.x.


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