Dipladenia vs dicot genus

Dipladenia and dicot genus both are nouns.

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

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

Dipladenia: genus of tropical South American tuberous perennial woody vines with large racemose flowers and milky sap
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Dipladenia include magnoliopsid genus.

Dipladenia (noun)	dicot genus (noun)
genus of tropical South American tuberous perennial woody vines with large racemose flowers and milky sap	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination