| Cactaceae | |
Pfeiffera asuntapatensis
| (M. Kessler, Ibisch & Barthlott) Ralf Bauer | Cactaceae Syst. Init. 20: 6 | 2005 |
| Cactaceae | |
Pfeiffera boliviana
| (Britton) D.R. Hunt | Cactaceae Syst. Init. 14: 18 | 2002 |
| Cactaceae | ** |
Pfeiffera brevispina
| (F. Ritter) P.V. Heath | Calyx 4(4): 158 | 1994 |
| Cactaceae | |
Pfeiffera brevispina
| D.R. Hunt | Cactaceae Syst. Init. 14: 18 | 2002 |
| Cactaceae | * |
Pfeiffera cereiformis
| Salm-Dyck | Cact. Hort. Dyck. (1844) 1: 41 | 1845 |
| Cactaceae | |
Pfeiffera crenata
| (Britton) P.V. Heath | Calyx 4(4): 158 | 1954 |
| Cactaceae | |
Pfeiffera erecta
| F. Ritter | Taxon 13: 116 | 1964 |
| Cactaceae | |
Pfeiffera gracilis
| F. Ritter | Kakteen Südamer. 2: 505 | 1980 |
| Cactaceae | |
Pfeiffera ianthothele
| (Monv.) F.A.C. Weber | Dict. Hort. 944 | 1893-1899 [1898] |
| Cactaceae | |
Pfeiffera incahuasina
| (Cárdenas) P.V. Heath | Calyx 4(4): 158 | 1994 |
| Cactaceae | |
Pfeiffera mataralensis
| F. Ritter | Taxon 13: 115 | 1964 |
| Cactaceae | |
Pfeiffera micrantha
| (Vaupel) P.V. Heath | | |
| Cactaceae | |
Pfeiffera miyagawae
| Barthlott & Rauh | Cact. Succ. J. (Los Angeles) 59: 63 | 1987 |
| Cactaceae | |
Pfeiffera monacantha
| (Griseb.) P.V. Heath | Calyx 4(4): 158 | 1994 |
| Cactaceae | |
Pfeiffera multigona
| Cárdenas | Cactus (Paris) 82: 51 | 1964 |
| Cactaceae | |
Pfeiffera paranganiensis
| (Cárdenas) P.V. Heath | Calyx 4(4): 158 | 1994 |