Chinese Name:Ho Shou Wu, Used for:Tonifies the Liver and Kidneys, nourishes the Blood, and benefits the Essence: used for Deficient Yin or Deficient Blood patterns with such signs as dizziness, blurred vision, prematurely gray hair, weak lower back and knees, soreness in the extremities, and insomnia. Chinese Herbal Medicine, Materia Medica by Dan Bensky Pg. 472