Gold-thread,

Gold-thread, the popular name in America for Coptis trifolia, a ranunculaceous plant found from Denmark to Siberia, and over the North American continent through Canada into the United States. The leaves are evergreen and like those of the strawberry, but smaller; the flowers are small and white. The name 'gold-thread' is given to the abundant silk-like root-stocks, still a popular remedy among the French Canadians for ulcerated throats.