Cynodon vs liliopsid genus

Cynodon and liliopsid genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cynodon	Yes	No	No	No
liliopsid genus	Yes	No	No	No

As nouns, liliopsid genus is a hypernym of Cynodon; that is, liliopsid genus is a word with a broader meaning than Cynodon:

Cynodon: creeping perennial grasses of tropical and southern Africa
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Cynodon include monocot genus.

Cynodon (noun)	liliopsid genus (noun)
creeping perennial grasses of tropical and southern Africa	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed