Paper Spine Cactus - Tephrocactus Articulatus Papyracanthus 10cm pot 25cm tall - Super Rare Small Cactus Plant. Tephrocactus Papyracanthus – The Paper Spine Cactus. The Tephrocactus Papyracanthus, also known as the Paper Spine Cactus, is one of the most unusual-looking cacti!
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