Pfeiffera
Pfeiffera is a genus of flowering plants in the family Cactaceae, found in Bolivia and northwest Argentina. There has been some debate about the circumscription of the genus. It is placed in the tribe Echinocereeae.
The genus name of Pfeiffera is in honour of Ludwig [Karl Georg Pfeiffer], a German physician, botanist and conchologist.
It was first described and published in Cact. Hort. Dyck., edt. 1844 on page 40 in 1845.
Species
The following species are accepted:| Image | Scientific name | Distribution |
| Pfeiffera asuntapatensis Ralf Bauer | Bolivia | |
| Pfeiffera boliviana D.R.Hunt | Bolivia. | |
| Pfeiffera ianthothele F.A.C.Weber | Bolivia to NW. Argentina | |
| Pfeiffera miyagawae Barthlott & Rauh | Bolivia. | |
| Pfeiffera monacantha P.V.Heath | Bolivia to NW. Argentina | |
| Pfeiffera paranganiensis P.V.Heath | Bolivia |