Several popular cacti species are beloved by plant enthusiasts for their unique shapes, textures, and ability to thrive in arid conditions. The Bunny Ears Cactus (Opuntia microdasys) captivates with its flat, pad-like stems covered in soft, fuzzy glochids resembling bunny ears. The Golden Ball Cactus is a great houseplant for beginners as it fits in small spaces. These popular cacti species are prized for their unique appearances and ability to thrive in arid and sunny conditions.