Red kidney bean: the scientific name is red kidney bean, belonging to the genus Phaseolus. According to the color of kidney bean seed coat, it can be divided into red kidney bean, white kidney bean and flower kidney bean. Shanxi Province is the main producing province of red kidney beans in China, while Kelan, Wuzhai, Daixian and Fanshi in Shanxi Province are the main producing areas of red kidney beans, and kelan county is the national export base of red kidney beans. Red kidney bean is a specialty of Shanxi province, with huge particles, bright color, nutritional and medicinal value, nutrition and health, and longevity.

Red beans: Yunnan, Guizhou, Guangxi, Guangdong, Fujian and Taiwan Province. Mostly born in ravines, streams, forests or cultivated in gardens. Myanmar, Cambodia, Laos, Vietnam, Malaysia and Indonesia are also distributed. Red beans can be made into a variety of delicious foods with high nutritional value. Rapid growth, 2 ~5 years old can be shaded by trees, and 8 years old can bloom and bear fruit for viewing. Long life, a hundred-year-old tree. However, the air pollution has significantly shortened the service life. Strong germination ability, pruning and shaping can be carried out.