Scirpus cyperinus vs wool grass

Scirpus cyperinus and wool grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scirpus cyperinus	Yes	No	No	No
wool grass	Yes	No	No	No

As nouns, Scirpus cyperinus and wool grass are synonyms defined as:

Scirpus cyperinus and wool grass: sedge of eastern North America having numerous clustered woolly spikelets

Scirpus cyperinus (noun)	wool grass (noun)
sedge of eastern North America having numerous clustered woolly spikelets	grass often cultivated for its long white-ribbed leaves and large plumes resembling those of pampas grass
	sedge of eastern North America having numerous clustered woolly spikelets