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Overview
Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock. It is also called prostrate knotweed, birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October.
Updated by lebachungtdh@gmail.com · 10/15/2026
It is widespread across many countries in temperate regions, apparently native to Eurasia, naturalized in temperate parts of the Southern Hemisphere.
Updated by lebachungtdh@gmail.com · 10/15/2026
Uses
- Biển súc (chi thực vật Polygonum) là một vị thuốc, nhưng cách gọi khác là "rau đắng" dễ gây nhầm lẫn với các loài dùng trong ẩm thực nhưng lại thuộc chi thực vật Glinus, chẳng hạn loài Glinus oppositifolius (rau đắng đất).
Habitat & conservation
It is an annual found in fields and wasteland, with white flowers from June to October. It is widespread across many countries in temperate regions, apparently native to Eurasia, naturalized in temperate parts of the Southern Hemisphere.
Conservation
Polygonum aviculare has not been assessed by the IUCN Red List (NE). As a medicinal plant, it benefits from sustainable collection and propagation to protect wild genetic resources.
References
- 1Wikipedia – Polygonum aviculare — Wikipedia,
- 2Kew POWO – Polygonum aviculare — Plants of the World Online (Kew),
- 3Wikidata – Q242573 — Wikidata,
