Subspecies, varieties, forms and cultivars of plants belonging to the Ariocarpus kotschoubeyanus group

• Ariocarpus kotschoubeyanus (Lem. ex K.Schum.) K.Schum.: Very flat geophyte cactus that produce small star-shaped rosettes. They in most cases don't reach more than only a few centimetres above the ground. The type species is intermediate between all the other forms and is to be found off highway 80, between El Huisache Junction and Santo Domingo.
• Ariocarpus kotschoubeyanus subs. albiflorus (Backeb.) Glass: This is a small growing form with white flowers described in Tamaulipas.
• Ariocarpus kotschoubeyanus f. cristatus hort.: The crested form is and can get relatively large making a spectacular specimen. The appeal lies in the peculiarly-shaped tubercles plus the challenge of growing it successfully.
• Ariocarpus kotschoubeyanus var. elephantidens Skarupke: Southerly form.They are much larger than type with larger, highly textured, triangulate tubercles, and a deep purple flower with little or no white content.
• Ariocarpus kotschoubeyanus var. elephantidens f. cristata hort.: crested form with distinguishing much larger and highly textured, triangulate tubercles.
• Ariocarpus kotschoubeyanus var. macdowellii (Backeb.) Krainz: This are the plants found in northern populations, they are smaller than the type, with small beak-like tubercles and pale mauve flowers, often with a high white content in the outer petals.
• Ariocarpus kotschoubeyanus f. monstruosus hort.: It foms monstrous bumped shapes, it is very courfull, the epidermis is dark green and contrasts with the large white areoles and new purple-red growth.
• Ariocarpus kotschoubeyanus f. mostruosus proliferus hort.: It is a very proliferous form with thin dark heads covered with tiny contrasting white woolly areole. Older plants will produce small cushions with hundreds of heads.
• Ariocarpus kotschoubeyanus subs. neotulensis Halda
• Ariocarpus kotschoubeyanus f. rubra hort.: has tubercles of a bright orange-red colour due to the absence (or reduced production) of chlorophyll pigments.
• Ariocarpus kotschoubeyanus subs. skarupkeanus Halda & Horáček
• Ariocarpus kotschoubeyanus subs. sladkovskyi Halda & Horáček: Differs from the other red flowering A. kotschoubeyanus (that have a dull and rough epidermis) for having a smoother and shiny epidermis.