nettle family vs dicot family

nettle family and dicot family both are nouns.

Word	Noun	Adjective	Verb	Adverb
nettle family	Yes	No	No	No
dicot family	Yes	No	No	No

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

nettle family: a family of plants of order Urticales including many nettles with stinging hairs
dicot family: family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of nettle family include magnoliopsid family.

nettle family (noun)	dicot family (noun)
a family of plants of order Urticales including many nettles with stinging hairs	family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination