A spineless form of Cumulopuntia boliviana, I believe. They have lots of glochids, just as your plant. I am not completely sure of what you refer to as "appendages", but if it is the soft, reddish things that protrude from the body close to the top, then they are rudimentary leaves.
On second look, it DOES look alot like a tephrocactus I have (with long paper like "spines"). Yours lacks the spines though.
More images of the glochids I used a Dino-Lite digital microscope to take pictures of the glochids at the base of the "leaves". Thanks for all the suggestions, so far. mo green
I still think it is a C. boliviana, or the subspecies dactylifera, the body shape does not match T. articulatus (which I guess is what wazungy has). Opuntioids are often moved to another genus anyway, it feels as it almost doesn't matter what genus you put on the label :-( Both (and several others) can be seen here.
I looked up some info.... Cumulopuntia boliviana (Salm-Dyck) F. Ritter Synonym: Maihueniopsis boliviana, Tephrocactus melanacanthus, Tephrocactus echinaceus, Tephrocactus bolivianus, Tephrocactus asplundii, Tephrocactus albiscoparius, Cumulopuntia pampana, Opuntia asplundii, Cumulopuntia famatinensis, Cumulopuntia echinacea, Opuntia echinacea, Opuntia boliviana cheers, Wazungy
