sweet unicorn plant vs Martynia fragrans

sweet unicorn plant and Martynia fragrans both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet unicorn plant	Yes	No	No	No
Martynia fragrans	Yes	No	No	No

As nouns, sweet unicorn plant and Martynia fragrans are synonyms defined as:

sweet unicorn plant and Martynia fragrans: a herbaceous plant of the genus Proboscidea

Other synonyms of sweet unicorn plant include Proboscidea fragrans.

sweet unicorn plant (noun)	Martynia fragrans (noun)
a herbaceous plant of the genus Proboscidea	a herbaceous plant of the genus Proboscidea