The Frailea genus comprises a variety of small, globe-shaped cacti native to South America, particularly in Brazil, Uruguay, Paraguay, and Argentina. These cacti are renowned for their petite stature and remarkable ability to thrive in arid and semi-arid environments. Their compact size makes them highly sought after by cactus enthusiasts and collectors.
Frailea species typically feature rounded, flattened bodies with distinct ribs adorned with small, soft spines. Their coloration ranges from green to brownish hues, often with a matte or slightly waxy texture. Despite their tiny size, Frailea plants produce stunning flowers, usually yellow or golden, that can sometimes outsize the plant itself. Interestingly, many Frailea species are cleistogamous, producing seeds without the flowers fully opening—a fascinating adaptation to conserve resources in their natural habitats.