Tephrocactus articulatus var. strobiliformis (Opuntia strobiliformis, Tephrocactus strobiliformis)

Succulent species native to western Argentina. Stems made up of numerous subspherical articles arranged one on top of the other. The articles are spineless (they only have areoles) or with 1-2 flat and pointed spines; they are green-grey in colour and come off easily. Showy white flowers. Easy to grow, it requires well-drained soil and a sunny or semi-shaded position. Water every 10-20 days during the growing season (spring-early autumn) but leave dry in winter. Hardy up to -9°C if well dry.