Rainbow Pincushion (Mammillaria rhodantha subsp. pringlei): A Colorful, Clustering Cactus

Mammillaria rhodantha subsp. pringlei, the Rainbow Pincushion, is a clustering cactus with globular to cylindrical stems. Its tubercles bear numerous white radial spines and 3-4 central spines that are often a mix of white, yellow, and brown, creating a "rainbow" effect. It produces rings of small, deep pink to carmine flowers. This Mexican native forms attractive mounds over time.