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Persicaria nepalensis
Also called Nepal Persicaria, Nepal Knotweed, Nepal Smartweed, Nepalese Knotweed
Nepalese Smartweed is a small annual herb in the buckwheat family, native to eastern Africa, Madagascar and parts of Asia, and now found as a weed in parts of Europe and North America. It is a low-maintenance weedy plant that thrives in moist, disturbed ground rather than being grown as an ornamental.
Persicaria nepalensis is a species of flowering plant in the family Polygonaceae, native to eastern Africa, including Madagascar, and parts of Asia. It has been introduced elsewhere: parts of Europe (including Great Britain), North America (including British Columbia, Connecticut, Massachusetts, New York and Pennsylvania) and northern South America. The species was first described as Polygonum nepalense by Carl Meissner in 1826, and transferred to Persicaria by Hugo Gross in 1913. (The same transfer was made later, in 1934, by Kingo Miyabe; as of 3 May 2019, Plants of the World Online used this transfer for the authorship of the combination.)
Amphibious Bistort · Halberdleaf tearthumb · Smart Weed · Bearded Knotweed · Two-horned smartweed · Prickly Smartweed · Pink Headed Knotweed · Persicaria cespitosa · Chinese Knotweed · Slender Knotweed · Persicaria dichotoma · Tall Knotweed
Text excerpted from the Wikipedia article Persicaria nepalensis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
