Gymnocalycium saglione (Gymnocalycium saglionis). Gymnocalycium are a globular cacti species from South America. Plants are showly and produce brightly colored flowers and have thick curved spines making this species popular among collectors. It's most common and native habitat is in mostly in Salta, Tucuman, Catamarca, San Juan, and La Rioja − on rocky soil with low vegetation. These seeds were recently collected from the wild near Ulapes / La Rioja Argentina.