Subspecies, varieties, forms and cultivars of plants belonging to the Rebutia marsoneri group

• Rebutia krainziana Kesselr.: Small cactus with dark stem colour, emphasized by the small, white areoles, and its large orange-red flowers, (but also available in shades from dark red, to orange, yellow or white) reminding those of daisies.
• Rebutia krainziana var. albiflora hort.: Plant with pure white flowers, and very thin, very short, snow-white spines set against the dark green body.
• Rebutia krainziana cv. brevispina: is a mutant cultivar with very sort spines and the vestigial leaves in the new growth.
• Rebutia krainziana cv. inermis: The specially notable characteristics of this cactus is its green naked (spine-less) stem that will turn a lovely purple tinge in full sun.
• Rebutia krainziana cv. Inermis Cristata: Unusual crested form with smother shining green epidermis and mauve tones if exposed to sun.
• Rebutia marsoneri Werderm.: Plants usually solitary, depressed globose, with golden yellow to orange flower in spring.