Summary ⁵

Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock. It is also called birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October.

Sources and Credits

1. (c) Oskar Gran, some rights reserved (CC BY-NC), https://www.flickr.com/photos/95549735@N08/8800348860/
2. (c) --Tico--, some rights reserved (CC BY-NC-ND), https://www.flickr.com/photos/tico_bassie/3544513664/
3. (c) Tab Tannery, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/tabtannery/5273042652/
4. (c) Forest and Kim Starr, some rights reserved (CC BY), https://www.flickr.com/photos/starr-environmental/24925824269/
5. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Polygonum_aviculare

More Info

• iNat taxon page
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• Catalogo de Plantas y Líquenes de Colombia
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• USDA PLANTS database
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• World Flora Online
• 日本のレッドデータ検索システム
• 植物和名−学名インデックス YList

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