⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2712471, with some changes.

Cereus trigonus var. guatemalensis Eichler is a synonym of Hylocereus undatus (Haw.) Britton & Rose

This name is a synonym of Hylocereus undatus (Haw.) Britton & Rose.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Monatschr. Kakteenk. 21: 53 1911.