Definition of yellow nutsedge
: a widely distributed weedy sedge (Cyperus esculentus) with small, edible, rapidly produced, nutlike tubers
- Yellow nutsedge is a perennial grass-like weed with triangular leaves and a yellow-green color.
- —Richard Burton, Secrets to a Great Lawn, 2001
- In one year, a single yellow nutsedge (nutgrass) can produce 1,900 new plants.
- —Dan Vierria, The Sacramento (California) Bee, 28 Jan. 2006
