Delphinium tricorne is a perennial flowering plant, known also by the common name dwarf larkspur, in the family Ranunculaceae. It sends up long, stringy thin stems with few leaves and bears attractive flowers in shades of blue. It is found throughout the eastern United States and in the Great Smoky Mountains National Park. D. tricorne is one of the Delphinium species mentioned by Chesnut in an old report in connection with livestock poisoning in the United States.