African tulip vs Agapanthus africanus

African tulip and Agapanthus africanus both are nouns.

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

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

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

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

African tulip (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