Scirpus cyperinus vs sedge

Scirpus cyperinus and sedge both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scirpus cyperinus	Yes	No	No	No
sedge	Yes	No	No	No

As nouns, sedge is a hypernym of Scirpus cyperinus; that is, sedge is a word with a broader meaning than Scirpus cyperinus:

Scirpus cyperinus: sedge of eastern North America having numerous clustered woolly spikelets
sedge: grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers

Scirpus cyperinus (noun)	sedge (noun)
sedge of eastern North America having numerous clustered woolly spikelets	grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers