Elderberry is a small dark purple fruit that grows on the Sambucus tree, which is commonly found in temperate and subtropical regions of the world. The berries are typically harvested in late summer or early fall and are known for their rich antioxidant content. Elderberries have been used for centuries in traditional medicine to treat a variety of ailments, including colds, flu, and inflammation. They are often consumed in the form of syrups, teas, and supplements. In addition to their medicinal properties, elderberries are also used in cooking and baking, adding a tart flavor to jams, pies, and wines. The plant's flowers are also edible and can be used to make elderflower cordial or fritters. It is important to note that raw elderberries and other parts of the plant can be toxic if not properly prepared, so they should always be cooked before consumption.