|genus = Hylocereus
|species = setaceus
|authority = (Salm-Dyck ex DC.) Ralf Bauer
}}Hylocereus setaceus is a species of plant in the Cactaceae family. It is found in Argentina, Bolivia, Brazil, and Paraguay. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, rocky shores, and sandy shores. It is not considered threatened by the IUCN.
References
{{Taxonbar|from=Q973036}}{{Cactus-stub}} 3 : Night-blooming plants|Hylocereus|Taxonomy articles created by Polbot