Thaspium trifoliatum aureum

Description

Thaspium trifoliatum has two varieties - var. trifoliatum, which has dark maroon flowers, and aureum, which has golden yellow flowers,although some authorities use different characteristics to differentiate between varieties and allow var. aureum to have maroon petals. Both varities are found in the southeastern United States, with var. trifoliatum (the maroon variety) extendings its range further westward in the south to Texas, and further northward into Minnesota, and Ontario, Canada on the western edge, and into New York in the eastern end of its range. Some authorities classify the yellow variety of this plant as Thaspium trifoliatum .