Trapa vs magnoliopsid genus

Trapa and magnoliopsid genus both are nouns.

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

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

Trapa: small genus of Eurasian aquatic perennial herbs: water chestnut
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Trapa include dicot genus.

Trapa (noun)	magnoliopsid genus (noun)
small genus of Eurasian aquatic perennial herbs: water chestnut	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination