stems erect, branched, pubescent at the base, glabrous above; leaves aggregated at the base, linear-lanceolate, denticulated, pubescent; bracteæ linear, glabrous; peduncles dichotomous; calyx glabrous, tube turbinate, lobes ovate, acute, about as long as the tube; corolla broadly infundibuliform, deeply 5-fid, 6 times longer than the calyx; capsule globose, 3-celled. Annual. 1 1/2–2 feet, branches terete, stem-like, forked at top. Leaves numerous at the base, scattered on the lower part of stem and branches, 1–2 inches long, 1–2 lines wide, narrower at the base, minutely toothed; upper ones on the base of the forks, smaller, bract-like, glabrous. Pedicels 1–1 1/2 inch long. Corolla 8–10 lines broad, blue, lobes broadly ovate, spreading. Style with a tumid ring at the base of the rather large 3-fid stigma. Capsule the size of a pea, 10-ribbed; tube scarcely longer than the ovate, acuminate, spreading recurved, calycine-lobes, which are a little longer than the obtuse valves of capsule.