Blossfeldia is a genus of cactus (family Cactaceae) containing only one species, Blossfeldia liliputiana, native to South America in northwestern Argentina (Jujuy, Salta, Tucumán, Catamarca and Mendoza Provinces) and southern Bolivia (Santa Cruz and Potosí Departments). It grows at 1,200–3,500 m altitude in the Andes, typically growing in rock crevices, and often close to waterfalls.It is of note as the smallest cactus species in the world, with a mature size of around 10–12 mm diameter. The flowers ...