Subspecies, varieties, forms and cultivars of plants belonging to the Mammillaria rhodantha group

• Mammillaria rhodantha Link & Otto: (ssp. rhodantha) Plant with 17-24 glassy white radial spines and 4-7red to reddish brown central spines; Distribution: Hidalgo, Michoacan, Queretaro, and Guanajuato.
• Mammillaria rhodantha subs. aureiceps (Lem.) D.R.Hunt: Plant with about 25 golden yellow radial spines; Distribution: North of Mexico City on the Cerro de Chiquihuite, and in Guanajuato and Queretaro.
• Mammillaria rhodantha f. cristata hort.: red-brown spined cristate that forms superb brain-shaped mounds up to 50 cm wide.
• Mammillaria rhodantha subs. fera-rubra (F.Schmoll ex R.T.Craig) D.R.Hunt: Plant with 15-18 radial spines and smaller flowers; Distribution: Queretaro, Michoacan, and Zacatecas.
• Mammillaria rhodantha subs. mccartenii D.R.Hunt: Plant with 13-15 radial spines; Distribution: Michoacan and Zacatecas.
• Mammillaria rhodantha subs. mollendorffiana (Shurly) D.R.Hunt: Plant with 24-28 radial spines and small flowers; Distribution: Northwest Hidalgo.
• Mammillaria rhodantha subs. pringlei (J.M.Coult.) D.R.Hunt: Plant with 18-22 glassy white radial spines and yellow central spines; Distribution: Mexico, Jalisco, Guanajuato, and Queretaro.
• Mammillaria rhodantha subs. pringlei f. cristata: golden-yellow spined treasure that forms superb brain-shaped mounds up to 50 cm wide.