Ipomoea vs magnoliopsid genus

Ipomoea and magnoliopsid genus both are nouns.

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

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

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

Other hypernyms of Ipomoea include dicot genus.

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