stem erect, much branched, branches terete, filiform, minutely downy at the base, glabrous and dichotomous at the apex; leaves sessile, linear, acute, with revolute margins, entire or subdenticulated, the lowest opposite; pedicels of the dichotomous panicle capillary, much longer than the opposite bractea; calyx glabrous, 5-costate, hemispherical or acute at the base; lobes subulate, as long as the tube; corolla 3–4 times longer than the calyx; capsule roundish, 5-costate. Annual, 3–4 inches high, very slender. Leaves in some specimens 2–3. in others 3–4 lines long, 1/2-line wide, glabrous or minutely rough. Pedicels 4–12 lines long, glabrous. Calyx in flower 1 line long. Corolla 5-lobed at the apex, 2–3 lines long. Capsule 1 line long, with filiform, erect calyx lobes, a little longer than the valves.
