Fraxinus vs magnoliopsid genus

Fraxinus and magnoliopsid genus both are nouns.

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

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

Fraxinus: ash
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Fraxinus include dicot genus.

Fraxinus (noun)	magnoliopsid genus (noun)
ash	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination