Summary ⁴

Polygonum arenastrum, commonly known as equal-leaved knotgrass,is a summer annual flowering plant in the knotweed family Polygonaceae. It is native to Europe and can be found on other continents as an introduced species and a common noxious weed. Other common names include common knotweed, prostrate knotweed, mat grass, oval-leaf knotweed, stone grass, wiregrass, and door weed, as well as many others, knotweed was first seen in

Sources and Credits

1. (c) Drepanostoma, some rights reserved (CC BY-NC), uploaded by Drepanostoma
2. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
3. (c) Alice Shanks, some rights reserved (CC BY-NC), uploaded by Alice Shanks
4. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Polygonum_arenastrum

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