squaw grass vs liliaceous plant

squaw grass and liliaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
squaw grass	Yes	No	No	No
liliaceous plant	Yes	No	No	No

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

squaw grass: plant of western North America having woody rhizomes and tufts of stiff grasslike basal leaves and spikes of creamy white flowers
liliaceous plant: plant growing from a bulb or corm or rhizome or tuber

squaw grass (noun)	liliaceous plant (noun)
plant of western North America having woody rhizomes and tufts of stiff grasslike basal leaves and spikes of creamy white flowers	plant growing from a bulb or corm or rhizome or tuber