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British Dictionary definitions for knotgrass

knotgrass

noun
  1. Also called: allseed a polygonaceous weedy plant, Polygonum aviculare, whose small green flowers produce numerous seeds
  2. any of several related plants
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for knotgrass

Historical Examples

  • The hedgehog footed through the knotgrass slowly, grubbing with his snout to right and left of him.

    "Wee Tim'rous Beasties"

    Douglas English

  • Among various foods that have been mentioned for it are raspberry, ivy, and knotgrass.

  • They would not feed on knotgrass and other plants offered to them, and I failed to rear them.

  • It feeds on low-growing plants, such as knotgrass and dock, and has been reared from the egg in August and September.

  • The food comprises groundsel, knotgrass, chrysanthemum, and various other plants.