bush hibiscus vs Hibiscus farragei

bush hibiscus and Hibiscus farragei both are nouns.

Word	Noun	Adjective	Verb	Adverb
bush hibiscus	Yes	No	No	No
Hibiscus farragei	Yes	No	No	No

As nouns, bush hibiscus and Hibiscus farragei are synonyms defined as:

bush hibiscus and Hibiscus farragei: southern and western Australian shrub with unlobed or shallowly lobed toothed leaves and purple flowers; sometimes placed in genus Hibiscus

Other synonyms of bush hibiscus include Radyera farragei.

bush hibiscus (noun)	Hibiscus farragei (noun)
southern and western Australian shrub with unlobed or shallowly lobed toothed leaves and purple flowers; sometimes placed in genus Hibiscus	southern and western Australian shrub with unlobed or shallowly lobed toothed leaves and purple flowers; sometimes placed in genus Hibiscus