Acanthocereus tetragonus vs pitahaya cactus

Acanthocereus tetragonus and pitahaya cactus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acanthocereus tetragonus	Yes	No	No	No
pitahaya cactus	Yes	No	No	No

As nouns, Acanthocereus tetragonus and pitahaya cactus are synonyms defined as:

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

Other synonyms of Acanthocereus tetragonus include Acanthocereus pentagonus, pitahaya.

Acanthocereus tetragonus (noun)	pitahaya cactus (noun)
cactus of the southwestern United States and northern Mexico having edible juicy fruit	cactus of the southwestern United States and northern Mexico having edible juicy fruit