Epiphyllum oxypetalum (Dutchman's Pipe, kardable, Night Queen utawa Gul-e-Bakawali) iku spesies kaktus lan siji spesies sing paling akèh ditandur ing antara génus iki. Kembang iki uga dikenal minangka kembang Cereus sing mekar wayah wengi Cereus lan kerep diselingsurupaké karo spesies Selenicereus.

Sinonimi 
Cereus oxypetalus Moc. & Sesse ex de Candolle (1828) Prodr. 3:470
Epiphyllum oxypetalum (de Candolle) Haworth (1829) Phil. Mag. 6:109
Cereus latifrons Pfeiffer (1838) Enom. cact. 125
Phyllocactus oxypetalus (de Candolle) Link ex Walpers (1843) Repert. Bot. 2:341
Phyllocactus latifrons (Pfeiffer)  Link ex Walpers (1843) Repert. Bot. 2:341
Phyllocactus grandis Lemaire (1847) Fl. Serr. 3:225. b.
Phyllocactus guyanensis Brongnart ex Labouret (1853) Monogr. Cact. 416
Epiphyllum acuminatum K. Schumann in Martius (1890) Fl. Bras. 4:222
Phyllocactus acuminatus (K. Schumann) K. Schumann (1897) Gesamtb. Kakt. 213
Phyllocactus purpursii Weingart (1907) Moatsschr. Kakteenk. 17:34
Epiphyllum grande (Lemaire) Britton & Rose (1913) Contr. U. S. Nat. Herb. 16:257
Epiphyllum oxypetalum v. purpusii (Weingart) Backeberg (1952) Die Cactac. 2:747

Etimologi

Réferènsi 

 Anderson, E. F. 2001. The cactus family. Timber Press, Portland, Oregon, USA.

Pranala njaba 
 Video of the blooming Epiphyllum

Epiphytes
Tetuwuhan ngembang wayah wengi
Kaktus
Kaktus saka Mèksiko