Subspecies, varieties, forms and cultivars of plants belonging to the Coryphantha elephantidens group

• Coryphantha elephantidens (Lem.) Lem.: Large, depressed-globular cactus, often clumping with large dark-green tubercles rounded on top, the tubercles axil is very woolly. The radial spines are stout reflexed and adpressed to the body. Flowers whitish, yellow or pink.
• Coryphantha elephantidens f. aurea hort.: Mutant lacking chlorophyll pigment. The result is a completely cream-yellow or golden-yellow plant.
• Coryphantha elephantidens var. barciae L.Bremer: It has a big tap-root. Parastichy number 8/13.
• Coryphantha elephantidens subs. bumamma (Ehrenb.) Dicht & A.Lüthy: Strongly offsetting species forming large groups up to 50 cm in diameter. Stem glaucous green. It is very similar to Coryphantha elephantidens but the flower are much smaller and nearly yellow.
• Coryphantha elephantidens subs. greenwoodii (Bravo) Dicht & A.Lüthy: Solitary or group-forming, flat-globose mostly under the ground-level, intermediate between Coriphantha elepantidens and Coriphantha pycnacantha.
• Coryphantha elephantidens var. recurvispina (de Vriese) hort., nov. comb. ined.: Solitary, depressed, about 16 cm. in diameter, tubercles few, large, glaucous, obtuse; areoles and axils naked ; spines all radial, 8 more or less incurved. ( = Coryphantha elephantidens)
• Coryphantha elephantidens var. roseiflora Y.Itô: Pink flowering form.
• Coryphantha elephantidens subs. sulcolanata (Lem.) hort., nov. comb. ined.: Very similar (if not the same plant) to Coryphantha elephantidens but the flowers are always yellow and never pink. Origin: Hidalgo.
• Coryphantha elephantidens f. variegata hort.: Variegated form. The stems have sectors, patches or stripes with two colours, yellow and green. There are several forms of variegation.
• Coryphantha elephantidens cv. Tanshi Zougemaru: Cultivar with short but strong spines and very large tubercles. Flowers pink. Origin: Japan.
• Coryphantha elephantidens cv. Tanshi Zougemaru inermis
• Coryphantha garessii L.Bremer: Probable synonym of Coryphantha elephantides. Origin: Zacatecas