Cassia augustifolia vs Alexandria senna

Cassia augustifolia and Alexandria senna both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cassia augustifolia	Yes	No	No	No
Alexandria senna	Yes	No	No	No

As nouns, Cassia augustifolia and Alexandria senna are synonyms defined as:

Cassia augustifolia and Alexandria senna: erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia

Cassia augustifolia (noun)	Alexandria senna (noun)
erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia	erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia