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Polygonum avicularePolygonum aviculare
Polygonum aviculare
Polygonum aviculare
Polygonum aviculare
Polygonum aviculare
Polygonum avicularePolygonum avicularePolygonum aviculareOverview
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
Life cycle
From seed to productSeed & germination
The plant is propagated mainly by **seed**: sow fresh or pre-treated seed in loose, moist soil and keep it evenly damp; germination follows within a few weeks.
Seedling & growth
Seedlings establish, forming leaves and roots; growth rate depends on light and moisture.
Flowering
The plant blooms with **tiny greenish-white flowers, May–July**; pollination is by insects and wind.
Fruiting & harvest
After flowering the plant sets fruit and seed; **whole plants collected in summer–autumn**.
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,