Complete list of cactus types in English with images. Helps you identify desert, indoor, and miniature cactus using names and photos. Cacti occur in a wide range of shapes and sizes. They are native to the Americas, ranging from Patagonia in the south to parts of western Canada in the north, with the exception of Rhipsalis baccifera, which is also found in Africa and Sri Lanka. Learn about the diversity and beauty of cacti, from desert giants to indoor varieties. This guide introduces you to 85 different types of cactus plants, each with distinct characteristics, growing requirements, and photos. A cactus (plural cacti, cactuses, or cactus ) is any member of the flowering plant family Cactaceae, native to North and South America and typically characterized by leaves that are reduced in size or ephemeral, enlarged plant stems, and spines that grow from areoles, a structure unique to cacti. Cacti are distinctive and unusual plants, with close to 2,000 species. Most live in desert or semi-desert environments and have many special adaptations in order to survive and thrive in hot, dry ...