- Our Black Walnut Dandelion Root tea is a delicious naturally flavored Dandelion Root coffee substitute with Black Walnut Leaf, Walnuts and Rose Petals that you will enjoy relaxing with anytime! The natural and caffeine-free Black Walnut taste is delicious! - Ingredients: Dandelion Root, Black Walnut Leaf, Walnuts, Rose Petals and Natural Black Walnut Flavor.