Bromus vs liliopsid genus

Bromus and liliopsid genus both are nouns.

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

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

Bromus: a genus of grasses of the family Gramineae
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Bromus include monocot genus.

Bromus (noun)	liliopsid genus (noun)
a genus of grasses of the family Gramineae	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed