White willow is a deciduous tree commonly found along riverbanks and moist woodland settings in eastern North America, England, North Africa and some parts of Asia. Also known as Cricket Bat Willow, Basket Willow and Crack Willow, the tree provides dramatic flair in the landscape with its long and graceful, sweeping branches that sway with the wind. White willow bark is well known as a natural source of salicylates, agents collectively serving as the forerunner of aspirin.
White Willow Bark Powder, 1/4 lb
White willow bark has been used for centuries in Europe and North America, although there is record of its use in ancient Greece and China as well. The bark contains various tannins and a chemical called salicin, a precursor to acetylsalicylic acid that is more commonly known as aspirin.
Powdered white willow bark is usually encapsulated, but can also be used to produce salves and ointments.