Tufted to clump-forming perennial with erect unbranched stems 30-60cm tall. Leaves narrowly to broadly ovate, sessile, 5-10cm or more long, deep green. Flowers up to 5cm long, narrowly trumpet-shaped, somewhat constricted just below the flared, pointed lobes, scarlet outside, yellow inside, early to mid summer. Southeastern U.S.A., in moist woods. Will grow in full sun if soil is moist.