belladonna lily vs Amaryllis belladonna

belladonna lily and Amaryllis belladonna both are nouns.

Word	Noun	Adjective	Verb	Adverb
belladonna lily	Yes	No	No	No
Amaryllis belladonna	Yes	No	No	No

As nouns, belladonna lily and Amaryllis belladonna are synonyms defined as:

belladonna lily and Amaryllis belladonna: amaryllis of South Africa often cultivated for its fragrant white or rose flowers

Other synonyms of belladonna lily include naked lady.

belladonna lily (noun)	Amaryllis belladonna (noun)
amaryllis of South Africa often cultivated for its fragrant white or rose flowers	amaryllis of South Africa often cultivated for its fragrant white or rose flowers