Definitions

1. noun

A type of grass-like weed (Cyperus rotundus) with yellowish flowers and a nut-like seed, often considered invasive.

“The gardener tried to remove the nutgrass from the lawn, but it kept coming back.”

2. noun

Any of several grass-like plants with edible tubers, especially those of the genus Cyperus.

“In some parts of the world, nutgrass is a common food source for wild animals.”