Taraxacum, commonly known as dandelion, is a weed with bright yellow flowers and toothed leaves. Other synonyms for this plant include blowball, cankerwort, clock flower, Irish daisy, pissabed, and wild endive. Blowball refers to the seed head, which, when mature, can be blown and scattered by the wind. Cankerwort is derived from the plant's traditional use in herbal medicine, as it was believed to cure canker sores. Clock flower is a reference to the plant's seed head resembling a clock face. Irish daisy and wild endive reflect its use as a culinary plant, while pissabed refers to its use as a diuretic. Whatever the name, this tough and tenacious plant is a familiar sight in meadows, lawns, and gardens around the world.