rush family vs monocot family

rush family and monocot family both are nouns.

Word	Noun	Adjective	Verb	Adverb
rush family	Yes	No	No	No
monocot family	Yes	No	No	No

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

rush family: tufted herbs resembling grasses: rushes
monocot family: family of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of rush family include liliopsid family.

rush family (noun)	monocot family (noun)
tufted herbs resembling grasses: rushes	family of flowering plants having a single cotyledon (embryonic leaf) in the seed