Blossfeldia liliputana is a species of cactus native to South America in northwestern Argentina (Jujuy, Salta, Tucumán and Catamarca Provinces) and southern Bolivia (Potosí Department). 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 are pink, 6-15 mm long and 5-7 mm diameter. The species is named after the fictional country Lilliput where all the inhabitants are minute.