A new graft cactus (Gymnocalycium mihanovichii x G. marsoneri x mihanovichii) cultivar, 'Yeonsim' was developed from a interspecific cross between two black with pink graft cactus (Gymnocalycium mihanovichii) breeding line '9603026' and G. marsoneri x mihanovichii breeding line 'BP', a line with the characteristics of wide spacing between ribs, and vigorous growth and through line selection at the National Horticultural Research Institute, Rural Development Administration in 2005. It was developed with the aim of breeding cultivars with new colors and globe shapes. Its characteristic evaluation was conducted during 2003 to 2005. The color of both body and tubercle was pink. The shape of the globe was flattened round and it had 7 to 9 deep ribs. The spine was short, straight and brown color. Growth was faster than the comparison cultivar, 'Yeonhwa'. Propagation capability was excellent, setting 12 tubercles per globe. Characteristics of the cultivar could be maintained by vegetative propagation. Strong sun light and virus infection should be avoided.

• Myeong Il Jeong
• Bong Nam Chung
• Pil Man Park
• Won Hee Kim
• Eun Kyung Lee
• Jae Yeong Kim