Samolus vs magnoliopsid genus

Samolus and magnoliopsid genus both are nouns.

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

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

Samolus: genus of herbs usually growing in salt marshes: water pimpernels
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Samolus include dicot genus.

Samolus (noun)	magnoliopsid genus (noun)
genus of herbs usually growing in salt marshes: water pimpernels	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination