Polygonum arenastrum | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Polygonaceae |
Genus: | Polygonum |
Species: | P. arenastrum
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Binomial name | |
Polygonum arenastrum Boreau 1857
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Synonyms[1] | |
Synonymy
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Polygonum arenastrum, commonly known as equal-leaved knotgrass,[2] is a summer annual flowering plant in the knotweed family Polygonaceae. Other common names include common knotweed, prostrate knotweed, mat grass, oval-leaf knotweed,[3] stone grass, wiregrass, and door weed, as well as many others. It is native to Europe[4] and can be found on other continents as an introduced species and a common noxious weed. Knotweed was first seen in North America in 1809 and is now seen across much of the United States and Canada.