Serenoa vs liliopsid genus

Serenoa and liliopsid genus both are nouns.

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

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

Serenoa: one species: saw palmetto
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Serenoa include monocot genus.

Serenoa (noun)	liliopsid genus (noun)
one species: saw palmetto	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed