Summary ²

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. It is widespread across many countries in temperate regions, apparently native to Eurasia and North America, naturalized in temperate parts of the Southern Hemisphere.

Sources and Credits

1. (c) Matt Lavin, some rights reserved (CC BY-SA), http://www.flickr.com/photos/plant_diversity/4985273606/
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Polygonum_aviculare

More Info

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