Nerium vs magnoliopsid genus

Nerium and magnoliopsid genus both are nouns.

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

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

Nerium: one species: oleander
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Nerium include dicot genus.

Nerium (noun)	magnoliopsid genus (noun)
one species: oleander	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination