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Yellow flowers on a stick. Prickly burrs that stick to clothes. Astringent. Leaf tea or cold infusion is used for jaundice and other liver ailments, colds, diarrhea, mouthwash, skin issues, ulcers, diuretic. Externally, a poultice or soak is used to treat athlete's foot, sores, slowhealing wounds, stop bleeding, and insect bites. Gargle with cold infusion or tea to relieve sore throats, inflamed gums, and laryngitis.