Frontier Co op Willow Bark is obtained from over 400 species of willow trees and shrubs. Our high quality, cut and sifted willow bark is obtained from Salix alba, S. Fragilis, S. daphnoides, and S. purpurea. These four species deliver the best tree bark blend possible. With wintergreen flavor and an earthy aroma, willow bark is great addition to herbal teas and lotions. Best Uses Hot teas, skin lotions FEATURES pound bulk bag 16 ounces Organic certified, Kosher certified, non irradiated High quality cut sifted dried willow bark Caffeine Free Botanical names Salix alba, S. Fragilis, S. daphnoides, and S. purpurea