wild senna vs Senna marilandica

wild senna and Senna marilandica both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild senna	Yes	No	No	No
Senna marilandica	Yes	No	No	No

As nouns, wild senna and Senna marilandica are synonyms defined as:

wild senna and Senna marilandica: North American perennial herb; leaves are used medicinally; sometimes placed in genus Cassia

Other synonyms of wild senna include Cassia marilandica.

wild senna (noun)	Senna marilandica (noun)
North American perennial herb; leaves are used medicinally; sometimes placed in genus Cassia	North American perennial herb; leaves are used medicinally; sometimes placed in genus Cassia