negro vine vs Vincetoxicum hirsutum

negro vine and Vincetoxicum hirsutum both are nouns.

Word	Noun	Adjective	Verb	Adverb
negro vine	Yes	No	No	No
Vincetoxicum hirsutum	Yes	No	No	No

As nouns, negro vine and Vincetoxicum hirsutum are synonyms defined as:

negro vine and Vincetoxicum hirsutum: twining vine with hairy foliage and dark purplish-brown flowers

Other synonyms of negro vine include Vincetoxicum negrum.

negro vine (noun)	Vincetoxicum hirsutum (noun)
twining vine with hairy foliage and dark purplish-brown flowers	twining vine with hairy foliage and dark purplish-brown flowers