mangrove family vs dicot family

mangrove family and dicot family both are nouns.

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

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

mangrove family: trees and shrubs that usually form dense jungles along tropical seacoasts
dicot family: family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of mangrove family include magnoliopsid family.

mangrove family (noun)	dicot family (noun)
trees and shrubs that usually form dense jungles along tropical seacoasts	family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination