Your support is critical to our success.
Kakteen Südamerika 2: 637 (1980), without basionym date
Work can be freely used for any purpose, even commercial one. Original author of image doesn't have to be mentioned under shared or derived work.
More about licenses and author rights.
HS69 (Collector: Heinz Swoboda) Laguna, Cochabamba, Bolivia. Altitude: 2950m