Tephrocactus articulatus (Paper Spine Cactus)

Tephrocactus articulatus is a desert cactus native to arid regions of Argentina, where it grows in rocky, highly drained soils under intense sunlight.

What makes Tephrocactus articulatus distinctive?

Tephrocactus articulatus develops a modular structure of rounded stem segments that detach readily, a natural means of clonal propagation in its native habitat. Spination varies across forms: some show stiff white bristles, while the well-known Tephrocactus articulatus var. papyracanthus produces broad, translucent 'paper' spines that create a striking visual texture. Pale cream to yellow flowers may appear in warm seasons when the plant receives high light and very sparing irrigation. The species requires extreme drainage, abundant sun, and long dry intervals, thriving with minimal water and strong heat. In USDA Plant Hardiness Zones 9-11, it performs well outdoors in arid gardens, while in cooler regions it grows successfully in containers that remain dry and protected from frost. Its segmented architecture and distinctive spine variations make Tephrocactus articulatus a notable choice for collectors and for minimalist or rocky xeric plantings.