knotgrass

/ ˈnɒtˌɡrɑːs /

noun

1. Also called: allseed. a polygonaceous weedy plant, Polygonum aviculare, whose small green flowers produce numerous seeds

2. any of several related plants

Example Sentences

When the Prince’s Foundation took over the walled garden, it was a sea of knotgrass.

From Washington Post

“There’s something else,” said Harry, watching Hermione tearing bundles of knotgrass and throwing them into the potion.

From Literature

What, again, of weed seeds in general, and knotgrass in particular?

From Project Gutenberg

I will not say but that he may pass for an historian in Garbier's academy; he is much of the size of those knotgrass professors.

From Project Gutenberg

“Lacewing flies, leeches, fluxweed, and knotgrass,” she murmured, running her finger down the list of ingredients.

From Literature