Leuenb. 2010 - Leuenberger BE The misunderstood Cleistocactus serpens, and C. longiserpens, a new name for a species of Cactaceae from Peru. Botanische Jahrbücher 124(1): 13-30. doi: 10.1127/0006-8152/2002/0124-0013.
There is no corrections for Cleistocactus longiserpens yet.