knotgrass

noun

knot·grass | \ ˈnät-ˌgras

Definition of knotgrass

1 : a cosmopolitan prostrate weed (Polygonum aviculare) of the buckwheat family with jointed stems, prominent sheathing stipules, and minute flowers broadly : any of several congeneric plants

2 : any of several grasses (such as Paspalum distichum) with markedly jointed stems

Examples of knotgrass in a Sentence

Recent Examples on the Web This Series should play on a field of gout-wort, grommel and knotgrass. — John Hyduk, New York Times, 24 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'knotgrass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.