Lythrum vs dicot genus

Lythrum and dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lythrum	Yes	No	No	No
dicot genus	Yes	No	No	No

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

Lythrum: loosestrife
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Lythrum include magnoliopsid genus.

Lythrum (noun)	dicot genus (noun)
loosestrife	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination