Species: 18.
Geography: southern Mexico, Caribbean, Central America, northern South America.
- Hylocereus calcaratus (F. A. C. Weber) Britton et Rose 1909 (Costa Rica)
= Cereus calcaratus F. A. C. Weber 1902
- Hylocereus costaricensis (F. A. C. Weber) Britton et Rose 1909 (Costa Rica, Nicaragua, Panama)
= Cereus costaricensis F. A. C. Weber 1902
- Hylocereus escuintlensis Kimnach 1984 (Guatemala)
- Hylocereus estebanensis Backeberg 1957 (Venezuela)
- Hylocereus guatemalensis (Eichlam) Britton et Rose 1920 (Guatemala, El Salvador)
= Cereus trigonus var. guatemalensis Eichlam 1911
= Cereus guatemalensis (Eichlam) A. Berger 1929
- Hylocereus lemairei (W. J. Hooker) Britton et Rose 1909 (Trinidad, Tobago, Lesser Antilles, French Guiana, Suriname, Caribbean Islands, Venezuela)
= Cereus lemairei W. J. Hooker 1854
= Cereus trinitatensis Lemaire & Herment 1859
= Hylocereus trinitatensis (Lemaire & Herment) A. Berger 1929
= Cereus venezuelensis Britton et Rose 1920
= Wilmattea venezuelensis (Britton et Rose) Croizat 1972
- Hylocereus microcaldus Backeberg 1942 (Colombia, northern Peru)
- Hylocereus minutiflorus Britton et Rose 1913 (Guatemala, Belize, Honduras)
= Cereus minutiflorus (Britton et Rose) Vaupel 1913
= Wilmattea minutiflorus (Britton et Rose) Britton et Rose 1920
- Hylocereus monacanthus (Lemaire) Britton et Rose 1920 (Costa Rica, Panama, Colombia)
= Cereus monacanthus Lemaire 1845
- Hylocereus ocamponis (Salm-Dyck) Britton et Rose 1909 (southern Mexico)
= Cereus ocamponis Salm-Dyck 1850
- Hylocereus peruvianus Backeberg 1937 (Peru)
- Hylocereus polyrhizus (F. A. C. Weber) Britton et Rose 1920 (Nicaragua, Costa Rica, Panama, Colombia, Ecuador)
= Cereus polyrhizus F. A. C. Weber 1897
- Hylocereus purpusii (Weingart) Britton et Rose 1920 (western Mexico)
= Cereus purpusii Weingart 1909
- Hylocereus scadens (Salm-Dyck) Backeberg 1920 (Guyana, Suriname)
= Cereus scadens Salm-Dyck 1850
- Hylocereus stenopterus (F. A. C. Weber) Britton et Rose 1909 (Costa Rica, Panama)
= Cereus stenopterus F. A. C. Weber 1902
- Hylocereus triangularis (Linnaeus) Britton et Rose 1909 (Caribbean, Cuba, Jamaica, Dominican Republic)
= Cactus triangularis Linnaeus 1753
= Cereus triangularis (Linnaeus) Haworth 1812
= Cereus compressus P. Miller 1768
= Hylocereus compressus (P. Miller) Y. Itô 1981
= Hylocereus cubensis Britton et Rose 1920
- Hylocereus trigonus (Haworth) safford 1909 (Caribbean, Puerto Rico, Virgin Islands, Lesser Antilles)
= Cereus trigonus Haworth 1812
= Cereus napoleonis Graham 1836
= Hylocereus napoleonis (Graham) Britton et Rose 1909
= Cereus plumeri Gosselin 1907
= Hylocereus plumeri (Gosselin) Lourteig 1991
= Hylocereus antiguensis Britton et Rose 1920
- Hylocereus undatus (Haworth) Britton et Rose 1918 (uncertain distribution)
= Cereus undatus Haworth 1830
= Cereus tricostatus Gosselin 1907
= Hylocereus tricostatus (Gosselin) Britton & Rose 1909
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