Orbignya vs liliopsid genus

Orbignya and liliopsid genus both are nouns.

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

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

Orbignya: palms of southern Mexico to northern South America: babassu palm
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Orbignya include monocot genus.

Orbignya (noun)	liliopsid genus (noun)
palms of southern Mexico to northern South America: babassu palm	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed