Acanthocereus pentagonus vs pitahaya

Acanthocereus pentagonus and pitahaya both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acanthocereus pentagonus	Yes	No	No	No
pitahaya	Yes	No	No	No

As nouns, Acanthocereus pentagonus and pitahaya are synonyms defined as:

Acanthocereus pentagonus and pitahaya: cactus of the southwestern United States and northern Mexico having edible juicy fruit

Other synonyms of Acanthocereus pentagonus include Acanthocereus tetragonus, pitahaya cactus.

Acanthocereus pentagonus (noun)	pitahaya (noun)
cactus of the southwestern United States and northern Mexico having edible juicy fruit	highly colored edible fruit of pitahaya cactus having bright red juice; often as large as a peach
	cactus of the southwestern United States and northern Mexico having edible juicy fruit