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Polygonum arenarium
Also called Lesser Red Knotgrass
Polygonum arenarium is a small, scrambling or prostrate annual weed of the buckwheat family, often found on disturbed ground and sandy soils. It is grown only as a curiosity; it is mainly known as a wild plant that thrives in poor, sandy conditions.
Polygonum arenarium, the lesser red-knotgrass or European knotweed, is a species of flowering plant in the family Polygonaceae. It is native to Morocco, France, the former Czechoslovakia, Hungary, southeastern and eastern Europe, the Caucasus, Turkey, the Levant, Iraq, Iran, and Central Asia, and it has been introduced to Argentina, the British Isles, Germany, the Baltic States, and central European Russia. A scrambling or procumbent annual, it is often found in disturbed habitats. In more natural situations it is a psammophyte.
Oval-leaf knotweed · Prostrate knotweed · Indian Knotgrass · Douglas' knotweed · Erect knotweed · Knotweed
Text excerpted from the Wikipedia article Polygonum arenarium 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.
