Eukaryota | Plantae | Pteridobiotina | Tracheophyta | Magnoliopsida | Caryophyllales | Cactaceae | Cactoideae | Cereeae | Trichocereinae | Oreocereus | Oreocereus celsianus
COL:CS5HF | COL:P | COL:CMQ8S | COL:TP | COL:MG | COL:VW | COL:7HS | COL:626SB | COL:KV3PC | COL:KVZTJ | COL:69K5 | COL:74T2F
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Britton & Brown |  |  | Juss. ex Bercht. & J.Presl | Juss. | Eaton | Salm-Dyck | Buxb. | (A.Berger) Riccob. | (Lem. ex Salm-Dyck) Riccob.