Geohintonia mexicana

Glandulicactus crassihamatus

Glandulicactus mathssoni

Glandulicactus uncinatus v. uncinatus. USDA: 9b-11. Light shade to full sun. Solitary cylindrical cactus, up to 8" tall, 3" in diameter. Diurnal, brownish red flowers, green fruits. Origin: Mexico, Southern Texas.

Glandulicactus uncinatus v. wrightii. Has characteristic red fruits. Endemic in and around San Luis Potosí Mexico

Gymnocactus beguinii

Gymnocactus beguinii v. hintoniorum

Gymnocactus saueri

Gymnocactus viereckii

Gymnocactus viereckii v. major

Gymnocactus viereckii v. neglectus

Gymnocactus ysabelae

Gymnocalycium achirasense

Gymnocalycium achirasense var chacrasense - Villa de Praga/San Luis, Argentina

Gymnocalycium ambatoense - Collected: Vindplaats / Miraflores / Catamarca Argentina

Gymnocalycium baldianum. (Dwarf chin). USDA: 8b-10. Full sun to light shade. Hardy to 15°F. Water summer, keep dry winter. Solitary or slowly clustering, up to 4" tall, 3" in diameter. Large deep red flowers. Type locality Sierra de Ancasti / Catamarca, Argentina

Gymnocalycium baldianum var. albiflorum. Type location - El Desmonte / Catamarca

Gymnocalycium bicolor v. simplex - 11km, N. San Pedro Norte/Cordoba  Argentina

Gymnocalycium bodenbenderianum -  type location Ulapes / La Rioja Argentina.

Gymnocalycium brachypetalum

Gymnocalycium bruchii. Collected: Coronel Pringles / San Luis, Argentina.

Gymnocalycium bruchii 'Suzanne'  Copina/Cordoba Argentina

Gymnocalycium bruchii var. pavlovskyi - Santa Cruz/Cordoba  HV 1293

Gymnocalycium carminanthum var. montanum
Collected Los Angeles / Catamarca Argentina

Gymnocalycium carolinense ssp. Coronel Pringles/San Luis

Gymnocactus castellanosii

Gymnocalycium castellanosii var. armillatum -  Sierra de Ulapes / La Rioja Argentina

Gymnocalycium catamarcense var. acinaspinosum
Mutquin / Catamarca Argentina

Gymnocalycium chacoense

Gymnocalycium curvispinum. (Synonym: Gymnocalycium neuhuberi) Cuesta de Portezuelo / Catamarca Argentina).