Selenicereus inermis (Otto ex Pfeiff.) Britton & Rose Selenicereus inermis (Otto ex Pfeiff.) Britton & Rose, Cactaceae (Britton & Rose) 2: 207. 1920 sec. Korotkova & al. 2017≡Cereus inermis Otto ex Pfeiff., Enum. Diagn. Cact.: 116. 1837 syn. sec. Bauer 2003