Subspecies, varieties, forms and cultivars of plants belonging to the Gymnocalycium pflanzii group

• Gymnocalycium marquezii Cárdenas: has shark mat type skin, dark coppery red stem and dark spines. Distribution: Tarija, Bolivia.
• Gymnocalycium marquezii f. variegatum hort.: Variegated form.
• Gymnocalycium pflanzii (Vaupel) Werderm.: Subsp. pflanzii has peculiar spine clusters bent backward. Fruits carmine with cherry-red pulp. Distribution: Bolivia, NW Paraguay and N Argentina.
• Gymnocalycium pflanzii var. albipulpa F.Ritter: has white fruit pulp. Distribution: Tarija, Santa Cruz, Cochabamba, Bolivia.
• Gymnocalycium pflanzii subs. argentinense H.Till & W.Till: occurs near Gonzalez, Salta, Argentina.
• Gymnocalycium pflanzii subs. dorisiae Amerh.: occurs in Tarija, Bolivia.
• Gymnocalycium pflanzii var. riograndense (Cárdenas) Donald: has spine clusters bent backward and short-tubed flowers with bluish-red centres. Distributio: Tarija, Chuquisaca, Santa Cruz, Bolivia.
• Gymnocalycium pflanzii subs. zegarrae (Cárdenas) G.J.Charles: has larger stems and fruits are green or rarely orange with white pulp. Distribution: South-east of Bolivia.