Ginseng is mainly divided into Asian ginseng, American ginseng and acanthopanax senticosus. Among them, Asian ginseng is divided into China ginseng, Korean ginseng and Japanese ginseng, all of which are wild or cultivated dry roots and rhizomes. Ginseng originated in Northeast China, Korean Peninsula and Russian Far East, and was introduced to Japan, the United States, Canada and other places. The quality of ginseng mainly depends on growth years, growth environment, harvesting and treatment.
It is generally believed that wild ginseng is more precious than cultivated ginseng, and the longer the growth period, the better the quality. Generally born in deciduous broad-leaved forest or mixed coniferous and broad-leaved forest at an altitude of several hundred meters. I like sandy loam with loose texture, good ventilation, good drainage and rich nutrients. A cool and humid climate is conducive to its growth. Resistant to low temperature, avoid direct light, like weak scattered light.
Evolutionary history of ginseng
Araliaceae ginseng originated in Neogene, about 60 million years ago, and it was very prosperous at that time. Later, due to the arrival of Quaternary glaciers, their distribution area was greatly reduced, and ginseng and other ginseng plants also survived as ancient relict plant. According to research, Taihang Mountain and Changbai Mountain are the cradles of ginseng. This is recorded in Tao Hongjing's Records of Famous Doctors in the Northern and Southern Dynasties: Ginseng is produced in Shangdang Valley and Liaodong. The book also describes the morphological characteristics and ecological habits of ginseng.
Shangdang is a part of Changzhi County and Licheng County in Shanxi Province, belonging to Taihang Mountain system. Liaodong is now the south of Liaoning Province. According to Lu 'an government records, the top of Zituan Mountain is often covered with purple gas, and the old ginseng is named Zituan Ginseng. The application of ginseng in Changbai Mountain can be traced back to the Southern and Northern Dynasties, more than 600 years ago/kloc-0.