This variety is selected from Qingjiang flower konjac superior plants and Yunnan white konjac superior plants through distant crosses. After countless selections and eliminations, they are bred from the hybrid offspring. This species has inherited the disease resistance of white konjac. Ability, adaptability to a variety of environments, and excellent product quality have also inherited the performance of the expansion coefficient of Qingjiang flower konjac, and the multiplication coefficient is much higher than that of traditional flower konjac varieties.

Because the konjac crop has special requirements for the environment: terrain, temperature, humidity, light intensity, etc., the traditional konjac planting range is quite limited. At about 30 degrees north latitude (such as Hubei and Sichuan), the adaptation range is 900-1400 meters above sea level. Mountainous areas, at about 25 degrees north latitude (such as Yunnan), are suitable for mountainous areas with a range of 1000-2400 meters. These mountainous areas often cover a wide area of forest, relatively small area of arable land, and large traffic restrictions. The planting range of konjac is very limited. The small size keeps the entire konjac industry in a situation where raw materials are scarce for a long time. The good adaptability of "Yuanza No. 2" is far superior to the resistance of traditional varieties. It can further expand the planting range of konjac and further improve the safety factor of the industry. It can make the konjac planting industry gradually tend to low altitude and make full use of low altitude. The regional land resources and transportation and logistics advantages provide more raw materials for the entire konjac processing industry.