A code of ethics, also called a code of conduct or ethical code, sets out the company's values, ethics, objective and responsibilities.
Willow bark tea is an herbal infusion made from the outer peel of the young branches of the willow tree. Of the several varieties, the white willow bark is Herbal Tea List
Green Willow is a Japanese ghost story in which a young samurai falls in love with a woman called Green Willow who has a close spiritual connection with a willow tree.  The Willow Wife is another, not dissimilar tale. Wisdom of the Willow Tree is an Osage Nation story in which a young man seeks answers from a willow tree, addressing the tree in conversation as 'Grandfather'.