The Collaborative International Dictionary
nutgrass \nut"grass`\, nut grass \nut" grass`\, n.(Bot.), A widely distributed perennial plant of the Sedge family ( Cyperus rotundus, var. Hydra), which has slender rootstocks bearing small, edible, nutlike tubers, by which the plant multiplies exceedingly, especially in cotton fields.
Syn: nutsedge, nut sedge, Cyperus rotundus.
nutsedge \nutsedge\, nut sedge \nut sedge\n. a widely distributed perennial sedge ( Cyperus rotundus) having small edible nutlike tubers; also called nut grass.
Syn: nutgrass, nut grass, Cyperus rotundus.
WordNet
Usage examples of "nut grass".
The prickly nut grass crawling across the ground there was yellowed.
There is a grass called nut grass, and another called Parramatta grass, either of which holds its own against anything living or dead.