Stone Flower A type of dried lichen used as a spice in Indian and West African cooking. It has a dark, flaky, paper-like appearance, usually blackish or grayish in color. Its flavor is subtle when raw, but when roasted or cooked in oil, it releases a strong earthy, smoky aroma with hints of bitterness. Commonly used in spice blends such as garam masala, goda masala, and in Nigerian local dishes for depth of flavor.