arum family vs liliopsid family

arum family and liliopsid family both are nouns.

Word	Noun	Adjective	Verb	Adverb
arum family	Yes	No	No	No
liliopsid family	Yes	No	No	No

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

arum family: anthurium; calla lily; jack-in-the-pulpit; philodendron
liliopsid family: family of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of arum family include monocot family.

arum family (noun)	liliopsid family (noun)
anthurium; calla lily; jack-in-the-pulpit; philodendron	family of flowering plants having a single cotyledon (embryonic leaf) in the seed