Willow Bark Extract Liquid, 4 oz, Herb PharmHerb Pharm Willow Bark Extract Botanical Name: Salix lucida Plant Part Extracted: Dried spring harvested bark 2 Other Ingredients: distilled water, certified organic grain alcohol & vegetable glycerine. Description: We prepare our Willow Extract from the bark of Salix lucida trees which have been Custom Wildcrafted? in their natural wild habitat 2. To assure optimal extraction of Willow's bioactive compounds, the bark is hand harvested in the early