Red kidney bean: the scientific name is red kidney bean, which belongs 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, Kelan, Wuzhai, Daixian and Fan Shi 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, healthy nutrition and longevity.

Red beans: Yunnan, Guizhou, Guangxi, Guangdong, Fujian and Taiwan Province provinces. Mostly in canyons, streams, forests or cultivated in gardens. Myanmar, Cambodia, Laos, Vietnam, Malaysia and Indonesia are also distributed. Red beans can be made into various delicious foods with high nutritional value. It grows rapidly, and can be shaded at the age of 2 ~5, and can blossom and bear fruit for viewing at the age of 8. A long-lived tree. However, air pollution greatly shortens the service life. Strong germination ability, can be trimmed and shaped.