wild onion vs alliaceous plant

wild onion and alliaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild onion	Yes	No	No	No
alliaceous plant	Yes	No	No	No

As nouns, alliaceous plant is a hypernym of wild onion; that is, alliaceous plant is a word with a broader meaning than wild onion:

wild onion: any of various plants of the genus Allium with edible bulbs found growing wild
alliaceous plant: bulbous plants having a characteristic pungent onion odor

wild onion (noun)	alliaceous plant (noun)
any of various plants of the genus Allium with edible bulbs found growing wild	bulbous plants having a characteristic pungent onion odor