lily family vs grass tree family

lily family and grass tree family both are nouns.

Word	Noun	Adjective	Verb	Adverb
lily family	Yes	No	No	No
grass tree family	Yes	No	No	No

lily family (noun)	grass tree family (noun)
includes species sometimes divided among the following families: Alliaceae, Aloeaceae, Alstroemeriaceae, Aphyllanthaceae, Asparagaceae, Asphodelaceae, Colchicaceae, Convallariaceae, Hemerocallidaceae, Hostaceae, Hyacinthaceae, Melanthiaceae, Ruscaceae, Smilacaceae, Tecophilaeacea, Xanthorrhoeaceae	one of many subfamilies into which some classification systems subdivide the Liliaceae but not widely accepted, comprising three subfamilies: Asphodeloideae, Hemerocallidoideae and Xanthorrhoeoideae (Xanthorrhoeaceae)