Origin of Name
The genus name "Gymnocalycium" is derived from the Greek words "gymnos", meaning naked, and "kalyx", meaning calyx, referring to the flower buds which are not covered by scales or hairs. The species name "vatteri" honors a notable individual, likely a botanist or a collector who has made significant contributions to the understanding or cultivation of this species. The '3 spine' designation describes a specific characteristic of this variety, indicating plants typically have three prominent spines per areole, which is a distinctive trait within this species.

Technical Description of Plant
Gymnocalycium vatteri '3 spine' is a compact, globular cactus that can eventually form a short columnar shape with age. This variety is noted for its relatively smooth, green to blue-green body and the presence of three significant, robust spines emerging from each areole, which can vary in color from white to brown or black. The arrangement and appearance of these spines give the plant a striking aesthetic. During late spring to early summer, it produces large, funnel-shaped flowers at the crown. The flowers are typically white to pale pink, adding an elegant contrast to the spiny body.

Origin of Plant
Gymnocalycium vatteri is native to South America, with a range that includes parts of Argentina and Paraguay. This species is adapted to rocky and arid environments, thriving in areas with well-draining soil and minimal water. The '3 spine' variety has been selectively cultivated for its unique spination, making it a desirable specimen for collectors and enthusiasts.

Conservation Status
While specific conservation information on Gymnocalycium vatteri '3 spine' may be limited, the Gymnocalycium genus does not generally face immediate threats of extinction. However, habitat destruction and illegal collection can pose risks to many cacti species. Sustainable cultivation and propagation in controlled environments are essential for preserving these plants and their natural diversity.

Care Instructions
Gymnocalycium vatteri '3 spine' prefers bright, indirect light but can tolerate direct morning sunlight. It thrives in a well-draining cactus mix, ideally with a slightly acidic to neutral pH. Water moderately during the active growing season, allowing the soil to dry thoroughly between waterings, and reduce watering in the winter to encourage a natural dormancy period. This variety is somewhat cold-tolerant but should be protected from frost. Fertilize lightly with a diluted cactus fertilizer during the growing season to support healthy growth and flowering. Due to its spiny nature, careful handling is recommended during repotting or maintenance.