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Persicaria punctata
Also called Dotted Water Smartweed, Water Smartweed, Dotted Knotweed, Dotted Smart Weed, American Willow Weed, Persicaria 'são Paulo'
Dotted smartweed is a variable, mostly low-growing herb of wet ground, from a rhizome, that is often grown or found in wet soil and shallow water margins. It thrives in moist to wet conditions in full sun or part shade.
Persicaria punctata (syn. Polygonum punctatum) is a species of flowering plant in the knotweed family known by the common names dotted smartweed and dotted knotweed.
Persicaria punctata is native to the Americas, where it can be found in moist and wet habitat types from Canada to Argentina including the West Indies. It is an extremely variable plant. It may be annual or perennial.
Amphibious Bistort · Pink Headed Knotweed · Chinese Knotweed · Water pepper · Curlytop knotweed · Redshank · Persicaria microcephala · Small water-pepper · Vietnamese Coriander · Pinkweed · Asiatic Tearthumb · Persicaria tinctoria
Text excerpted from the Wikipedia article Persicaria punctata 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.
