nutsedge vs nutgrass

nutsedge and nutgrass both are nouns.

Word	Noun	Adjective	Verb	Adverb
nutsedge	Yes	No	No	No
nutgrass	Yes	No	No	No

As nouns, nutsedge and nutgrass are synonyms defined as:

nutsedge and nutgrass: a widely distributed perennial sedge having small edible nutlike tubers

Other synonyms of nutsedge include Cyperus rotundus, nut grass, nut sedge.

nutsedge (noun)	nutgrass (noun)
a widely distributed perennial sedge having small edible nutlike tubers	a widely distributed perennial sedge having small edible nutlike tubers