The subfamily Opuntioideae comprises approximately 17 genera and 344 species.
Their most characteristic feature is their segmented stems, which are cylindrical, flattened, or globose, and facilitate vegetative propagation. Many species have glochids, small, barbed spines that detach easily. They are native to the Americas, from Canada to Patagonia, and inhabit deserts, arid areas, seasonal tropical forests, and mountainous regions. In general, they are easy to grow: they need plenty of light, well-balanced soil, and watering adapted to their growth and dormant periods. Some tolerate cold and severe frosts, while others require winter protection.
