Bunny Ear cactus can be a cute addition to your study table. This pretty plant is also known as the Polka-dot cactus which is a flowering cacti variety. This plant is native to Northern and Central Mexico. The bunny ear is a shrub that can spread out and cover around 2 to 54 feet of the ground. However, it is presently considered as houseplants that can be grown in a pot as well. Mature bunny ear cacti can produce beautiful yellow flowers followed by spherical fruits in purple colour.