Family, Birthwort. Color, purplish or greenish. Calyx, tubular, bent like the letter S, smaller in the middle, the small limb at the top 3-lobed. Petals, none. Stamens, 6, with sessile anthers joining in pairs, each pair overtopped by one of the 3 lobes of the stigma. Ovary, 6-celled. Leaves, alternate, ovate, or long and narrow, heart-shaped at base, acute at apex. Stem, upright, 6 to 18 inches high, covered with soft, downy hairs, branched below. July.

Flowers all near the root on short peduncles. The root has medicinal properties. Rich woods, Connecticut to Florida.