Cylindropuntia bigelovii

Known as "Teddy-Bear cactus", it is a small perennial shrub of an upright habit that tends to cluster over time. Its green stem is entirely covered with dense white-yellowish spines, hence the name "Teddy Bear". Flowering occurs in spring (rarely in autumn) at the ends of its stems, blooming with large flowers of a lime green color, with red shades on the outside.