Opuntia microdasys Opuntia microdasys Opuntia microdasys (angel's-wings, bunny ears cactus, bunny cactus or polka-dot cactus) is a species of flowering plant in the cactus family Cactaceae, native and endemic to central and northern Mexico. "Opuntia microdasys" forms a dense shrub 40–60 cm tall, occasionally more, composed of pad-like stems 6–15 cm long and 4–12 cm broad. "Opuntia microdasys" has no spines, but instead has numerous white or yellow glochids 2–3 mm long in dense clusters; these glochids are barbed and thinner than the finest human hairs, detaching in large numbers upon the slightest touch. If not removed they will cause considerable skin
Opuntia ficus-indica the wild origin of "O. ficus-indica" is likely to have been in Mexico due to the fact that its close genetic relatives are found in central Mexico. "Opuntia ficus-indica" is polyploid, hermaphrodite and autogamous. As "Opuntia" species grow in semi-arid environments, the main limiting factor in their environment is water. They have developed a number of adaptations to dry conditions, notably succulence. The perennial shrub "Opuntia ficus-indica" can grow up to 3-5m height, with thick, succulent and oblong to spatulate stems called cladodes. It has a water-repellent and sun-reflecting waxy epidermis. Cladodes that are 1–2 years old produce flowers, the