Pterocactus tuberosus
Author:(Pfeiff.) Britton & Rose 1919 .
Family:Cactaceae.
Habitat:Northern Argentina.
Synonym:Opuntia tuberosa,Pterocactus tuberosus var.decipiens,
Pterocactus decipiens,Pterocactus kuntzei.
-Pterocactus:from Greek pteron, "wing", referring to the saucer-shaped seed of these plants.