Pygmaecereus

Pygmaeocereus bieblii is a fascinating little, geophytic cactus with short thick spines. It usually grows solitary but occasionally forms small clusters or even large mats flat to the ground. It is really a particular cactus with very peculiar spines.

Pygmaeocereus bylesianus is a diminutive cactus with short, dense rust-coloured spines and remarkably beautiful white nocturnal flowers which open for just a single night.