Ariocarpus

Solitary, slow-growing geophytic cactus with equilateral triangular tubercles slightly protruding above ground; its substantial tuberous stem is entirely subterranean.

It blooms already at only 3-4 cm in diameter. Long, pointed and vertical tubercles. Yellow flower.

A small and highly attractive variety with disk-like bodies and flattened triangular tubercles barely rising above the soil. The main body is a large underground caudex. Flowers are white or very pale pink.

A star-shaped disk that lives half-buried! It forms flat, geometric rosettes no larger than a coin and hides a long, fleshy taproot underground. A gem for lovers of camouflaged, minimalist plants.

Variety with greener, elongated tubercles and a firm lizard-skin-like texture. Short yellow spines emerge from large woolly areoles. Green in shade, it turns purple in full sun.