Espostoa is a striking genus of tall, columnar cacti native to South America, particularly Peru and Ecuador, known for their dense, woolly or hairy exteriors and ribbed bodies. These resilient plants often feature impressive, fragrant flowers in shades of white or yellow that bloom at the top of the columns. An interesting fact is that Espostoa cacti are highly adaptable to arid environments and are valued for their unique hairy textures and appealing height, making them a distinctive addition to any desert or tropical collection.