''Pfeiffera'' is a genus of flowering plants in the family

Cactaceae A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek ...

, found in Bolivia and northwest Argentina. There is some debate about the circumscription of the genus. It is in the Phyllocacteae tribe. The genus name of ''Pfeiffera'' is in honour of

Ludwig Karl Georg Pfeiffer Ludwig Karl Georg Pfeiffer, also known as Louis Pfeiffer (4 July 1805 – 2 October 1877), was a German physician, botany, botanist and conchology, conchologist. Early life, Education & Medical Career Louis Pfeiffer was born in Cassel, the eldes ...

(1805–1877), a German physician, botanist and

conchologist Conchology () is the study of mollusc shells. Conchology is one aspect of malacology, the study of molluscs; however, malacology is the study of molluscs as whole organisms, whereas conchology is confined to the study of their shells. It includ ...

. It was first described and published in Cact. Hort. Dyck., edt. 1844 on page 40 in 1845.

Species

The following species are accepted:

References

Echinocereeae Cactoideae genera Flora of Bolivia Flora of Northwest Argentina Plants described in 1845 {{Cactus-stub