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Persicaria extremiorientalis
Far Eastern Smartweed (Persicaria extremiorientalis) is a low-grown annual in the buckwheat family, native to East Asia and introduced to the eastern United States. It is a wild plant rather than a commonly grown garden species, so care advice is limited.
Persicaria extremiorientalis, the east Asian smartweed, is a plant species in the buckwheat family, native to Japan, China, Korea, and far eastern Russia and introduced to the eastern United States where it is found from North Carolina to Massachusetts.
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 extremiorientalis 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.
