A well-branched grayish-green plant, leaves alternate or opposite, toothed, nearly triangular. Yellow flower heads are up to 2 inches (5 cm) across and have 3-toothed rays. The silvery green leaves are triangular with toothed margins. This plant is common on disturbed ground and sometimes colors acres or miles of roadside solid yellow. This plant was used by Indians and early settlers to treat skin ailments.
Description General: Mint Family (Lamiaceae). This aromatic herbaceous perennial is 5 to 12 dm. high and has branched, hairy stems and spreads by seeds and rhizomes. The opposite leaves are distinctly petioled and deltoid-lanceolate to lanceolate and slightly toothed. Wild bergamot has square stems with gray-green foliage. The flowers bloom from June to September. They are solitary and terminal on the flowering branches and the two stamens surpass the upper lip. The flowers are tubular, 13-15 nerved, with lobes much shorter than the tube. The corolla is lavender and strongly bilabiate. The upper lip is narrow, entire, and softly pubescent while the lower lip is broader. Distribution This plant is found in upland woods, thickets, and prairies from Quebec to Manitoba and British Columbia south to Georgia, Louisiana, and Arizona. For current distribution, please consult the Plant Profile page for this species on the PLANTS Web site.