Allium vs genus Allium

Allium and genus Allium both are nouns.

Word	Noun	Adjective	Verb	Adverb
Allium	Yes	No	No	No
genus Allium	Yes	No	No	No

As nouns, Allium and genus Allium are synonyms defined as:

Allium and genus Allium: large genus of perennial and biennial pungent bulbous plants: garlic, leek, onion, chive; sometimes placed in family Alliaceae as the type genus

Allium (noun)	genus Allium (noun)
large genus of perennial and biennial pungent bulbous plants: garlic, leek, onion, chive; sometimes placed in family Alliaceae as the type genus	large genus of perennial and biennial pungent bulbous plants: garlic, leek, onion, chive; sometimes placed in family Alliaceae as the type genus