Nopalea vs dicot genus

Nopalea and dicot genus both are nouns.

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

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

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

Other hypernyms of Nopalea include magnoliopsid genus.

Nopalea (noun)	dicot 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