Liliaceae vs family Xanthorrhoeaceae

Liliaceae and family Xanthorrhoeaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Liliaceae	Yes	No	No	No
family Xanthorrhoeaceae	Yes	No	No	No

Liliaceae (noun)	family Xanthorrhoeaceae (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)