Senna occidentalis vs coffee senna

Senna occidentalis and coffee senna both are nouns.

Word	Noun	Adjective	Verb	Adverb
Senna occidentalis	Yes	No	No	No
coffee senna	Yes	No	No	No

As nouns, Senna occidentalis and coffee senna are synonyms defined as:

Senna occidentalis and coffee senna: very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia

Other synonyms of Senna occidentalis include Cassia occidentalis, mogdad coffee, stinking weed, styptic weed.

Senna occidentalis (noun)	coffee senna (noun)
very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia	very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia