Arisaema amurense
Arisaema amurense, the tian nan xing, is a species of flowering plant in the family Araceae. It is native to the southern Russian Far East, the Korean Peninsula, and eastern China. A highly variable perennial reaching, it is found in a variety of forested habitats, typically by streams, at elevations from above sea level. Its tubers are collected in the wild and used in traditional Chinese medicine.