lilyturf vs liliaceous plant

lilyturf and liliaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
lilyturf	Yes	No	No	No
liliaceous plant	Yes	No	No	No

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

lilyturf: 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

lilyturf (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