lily turf vs liliaceous plant

lily turf and liliaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
lily turf	Yes	No	No	No
liliaceous plant	Yes	No	No	No

As nouns, liliaceous plant is a hypernym of lily turf; that is, liliaceous plant is a word with a broader meaning than lily turf:

lily turf: Asiatic perennial tufted herb with grasslike evergreen foliage and clusters of dark mauve grapelike flowers; grown as ground cover
liliaceous plant: plant growing from a bulb or corm or rhizome or tuber

lily turf (noun)	liliaceous plant (noun)
Asiatic perennial tufted herb with grasslike evergreen foliage and clusters of dark mauve grapelike flowers; grown as ground cover	plant growing from a bulb or corm or rhizome or tuber