Longmamma Nipple Cactus (Mammillaria sphaerica): A Globular Cactus with Long Tubercles

Mammillaria sphaerica, known as Longmamma Nipple Cactus, is a small, globular cactus distinguished by its unusually long, cylindrical tubercles (nipples) topped with areoles bearing spines. Its green body is often hidden by the dense covering of white radial spines and a few longer central spines. It produces yellow flowers with reddish mid-stripes. This Texas and Mexico native is a fascinating addition to cactus collections.