Nopalea vs magnoliopsid genus

Nopalea and magnoliopsid genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nopalea	Yes	No	No	No
magnoliopsid genus	Yes	No	No	No

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

Nopalea: a genus of the cactus family with scarlet flowers
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Nopalea include dicot genus.

Nopalea (noun)	magnoliopsid genus (noun)
a genus of the cactus family with scarlet flowers	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination