camass vs liliaceous plant

camass and liliaceous plant both are nouns.

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

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

camass: any of several plants of the genus Camassia; North and South America
liliaceous plant: plant growing from a bulb or corm or rhizome or tuber

camass (noun)	liliaceous plant (noun)
any of several plants of the genus Camassia; North and South America	plant growing from a bulb or corm or rhizome or tuber