Carex pseudocyperus vs sedge

Carex pseudocyperus and sedge both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carex pseudocyperus	Yes	No	No	No
sedge	Yes	No	No	No

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

Carex pseudocyperus: tufted sedge of temperate regions; nearly cosmopolitan
sedge: grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers

Carex pseudocyperus (noun)	sedge (noun)
tufted sedge of temperate regions; nearly cosmopolitan	grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers