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Knotweed vs. Smartweed — What's the Difference?

Knotweed vs. Smartweed

Difference Between Knotweed and Smartweed

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Knotweed

Knotweed is a common name for plants in several genera in the family Polygonaceae.
Jun 23, 2022

Smartweed

Any of various plants of the genera Persicaria and Polygonum, having sheathlike stipules and small, densely clustered pink, white, or green flowers.
Jun 23, 2022

Knotweed

Any of various low-growing or shrubby plants of the family Polyganaceae, having jointed stems and small flowers.
Jun 23, 2022

Smartweed

Any of a number of plants in the genus Persicaria (formerly Polygonum).
Jun 23, 2022

Knotweed

Any of several plants of the genus Polygonum, with jointed stems and inconspicuous flowers
Jun 23, 2022
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Smartweed

An acrid plant of the genus Polygonum (P. Hydropiper), which produces smarting if applied where the skin is tender.
Jun 23, 2022

Knotweed

See Knotgrass.
Jun 23, 2022

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