Synonyms: Cactus cespititius; Cactus granulatus; Cactus multiceps; Cactus multisectus; Cactus stellatus var. texanus (homotypic); Cactus texanus (homotypic); Chilita multiceps; Ebnerella multiceps; Escobariopsis prolifera texana (homotypic); Mammillaria caespititia; Mammillaria cespititia; Mammillaria granulata; Mammillaria grisea (homotypic); Mammillaria multiceps; Mammillaria multiceps perpusilla; Mammillaria multiceps var. elongata; Mammillaria multiceps var. grisea; Mammillaria multiceps var. humilis; Mammillaria multiceps var. perpusilla; Mammillaria nitida; Mammillaria parvissima (homotypic); Mammillaria perpusilla; Mammillaria prolifera f. texana (homotypic); Mammillaria prolifera multiceps; Mammillaria prolifera var. multiceps; Mammillaria prolifera var. perpusilla; Mammillaria prolifera var. texana; Mammillaria pusilla f. multiceps; Mammillaria pusilla f. texana (homotypic); Mammillaria pusilla texana; Mammillaria pusilla var. texana (homotypic); Mammillaria texana (homotypic); Neomammillaria multiceps; Neomammillaria prolifera var. multiceps; Neomammillaria prolifera var. texana