Mammillaria prolifera is a species of cactus in the subfamily Cactoideae, with the common name Texas nipple cactus. It is a low growing cactus, commonly branching to form colonies often 6 dm in diameter.
Mammillaria (Pincushion or Nipple Cactus) is the genus name of an attractive type of succulent cactus plants native mostly to the southwest United States and Mexico with some having naturalized into the Caribbean. There are around 300 species within the genus Mammillaria. The varieties for sale as houseplants are typically small and grow close to the ground in the wild. To recognize a true Mammillaria cactus, look for its spirally arranged, succulent nipple shaped tubercles. Interestingly, the spines of true cactus Mammillaria are arranged according to the Fibonacci sequence. This means that each row of tubercles is equal in number to the sum of the two rows immediately above it. When you view the pincushion cactus plant from above, you should notice that it has a very organized and orderly appearance.