Color, purplish blue. Flower much like the last, but smaller, Calyx, roundish, with long, awl-shaped divisions remaining attached to the ovary, making a much inflated capsule in fruit. Flowers, in loose racemes, all with leafy bracts, the upper very narrow. Leaves, thin, sessile, ovate to oblong, with short petioles. Plant. 10 to 36 inches in height, hairy, much branched, with an acrid juice. July to November.
A poisonous plant, formerly used in the Thomsonian school of medicine as an emetic. Dry soil, fields and thickets. Common.