ALL meanings of knotgrass
- noun knotgrass A common Eurasian plant of the dock family, with jointed creeping stems and small pink flowers. It is a serious weed in some areas. 1
- noun knotgrass a polygonaceous weedy plant, Polygonum aviculare, whose small green flowers produce numerous seeds 0
- noun knotgrass any of several related plants 0
- noun knotgrass any of several weedy plants (genus Polygonum) of the buckwheat family; esp., a common weed (P. aviculare) with slender stems, narrow leaves, and small axillary flowers 0
- noun knotgrass a creeping grass (Paspalum distichum) growing in wet places in the S U.S. 0
- noun knotgrass An annual plant, Polygonum aviculare, found in fields and wasteland. 0