Pomaderris vs dicot genus

Pomaderris and dicot genus both are nouns.

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

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

Pomaderris: a genus of Australasian shrubs and trees
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Pomaderris include magnoliopsid genus.

Pomaderris (noun)	dicot genus (noun)
a genus of Australasian shrubs and trees	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination