chin cactus, (genus Gymnocalycium), genus of about 50 species of cacti (family Cactaceae), native to South America. Chin cacti are found in warm regions of Argentina, Paraguay, Uruguay, Bolivia, and Brazil. Many natural and cultivated varieties are available and are common ornamentals.
Gymnocalycium chiquitanum often develops alone, as flattened, spherical, grey green to light-green, and occasionally crimson spilling branches that can grow to heights of at least 2-4cm and diameters of 6-9cm. The 6-7 ribs have noticeable protrusions that resemble chins.
Unique shape and flowers
Dos
Water sparingly<br> Fertilize regularly during growing season<br> Repot every 2-3 years
Don'ts
Avoid overwatering<br> Avoid extreme temperatures<br> Protect from frost