African lily vs Agapanthus africanus

African lily and Agapanthus africanus both are nouns.

Word	Noun	Adjective	Verb	Adverb
African lily	Yes	No	No	No
Agapanthus africanus	Yes	No	No	No

As nouns, African lily and Agapanthus africanus are synonyms defined as:

African lily and Agapanthus africanus: African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers

Other synonyms of African lily include African tulip, blue African lily.

African lily (noun)	Agapanthus africanus (noun)
African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers	African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers