Contains 3 accepted taxa overall.
Characteristics
Classification
Citation
SELENICEREUS (A. Berger) Britton & Rose, Contr. U.S. Natl. Herb. 12: 429. 1909.
                    BASIONYM: Cereus Miller, subsect. Selenicereus A. Berger, Rep. (Annual) Missouri Bot. Gard. 16: 76. 1905.
                    TYPE: Selenicereus grandiflorus (Linnaeus) Britton & Rose 1909.  (Cactus grandiflorus Linnaeus 1753.)
                    Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos | 
|---|---|---|---|---|
| Selenicereus grandiflorus | QUEEN OF THE NIGHT | Not Native | ||
| Selenicereus pteranthus | PRINCESS-OF-THE-NIGHT | Not Native Y | ||
| Selenicereus undatus | NIGHTBLOOMING CACTUS | Not Native | 
[Family identification key]
                            
                                1.  Stems 3-ribbed usually; flower and fruit areoles without conspicuous trichomes; bracts of fruit persistent 
                            
                        
                        
                        
                    
                            
                                1.  Stems with 4-8 ribs; flower and fruit areoles with conspicuous trichomes or spines; bracts of fruits withering-deciduous 
                            
                        
                        
                        
                                2
                        
                    
                            
                                2.  Stems with 5-8 ribs, areoles with 6-18 spines, these 4-12(15) mm long 
                            
                        
                        
                        
                    
                            
                                2.  Stems with 4-6 ribs, areoles with 1-5 spines, these often 1-3 mm long, occasionally longer 
                            
                        
                        
                        
                    Genus Synonyms
| Synonym | Full Citation | Basionym | Type | 
|---|---|---|---|
| Cryptocereus | Cryptocereus Alexander, Cact. Succ. J. (Los Angeles) 22: 164, f. 64-69. 1950. | TYPE: Cryptocereus anthonyanus Alexander 1950. | |
| Hylocereus | Hylocereus (A. Berger) Britton & Rose, Contr. U.S. Natl. Herb. 12: 428. 1909. | BASIONYM: Cereus Miller, subg. Hylocereus A. Berger, Rep. (Annual) Missouri Bot. Gard. 16: 72. 1905. | TYPE: Hylocereus triangularis (Linnaeus) Britton & Rose 1909. (Cactus triangularis Linnaeus 1753.) | 
| Werckleocereus | Werckleocereus Britton & Rose, Contr. U.S. Natl. Herb. 12: 432. 1909. | TYPE: Werckleocereus tonduzii (F .A .C. Weber) Britton & Rose 1909. (Cereus tonduzii F. A. C. Weber 1902.) | |
| Wilmattea | Wilmattea Britton & Rose, Cact. 2: 195, f 272. 1920. | TYPE: Wilmattea minutiflora (Britton & Rose) Britton & Rose 1920. (Hylocereus minutiflorus Britton & Rose 1913.) |