Rhodiola is a plant in the Crassulaceae family that grows in cold regions of the world. The perennial plant grows in areas up to 2280 meters elevation. Several shoots grow from the same thick root. Shoots reaches 5~35 cm in height. Rhodiola rosea is dioecious – having separate female and male plants. It has been used in traditional Chinese medicine, where it is called hóng jǐng tiān. It is effective for improving mood and alleviating depression.