viscidly pubescent; stem erect or decumbent at base, branching; leaves lanceolate, undulate, the radical spathulate, acute, petiolate; cymes few flowered or paniculate; flowers erect; fruiting calyces clavato-cylindrical, the thecaphore 1/3 of capsule. Stem either sub-simple, and six inches high; or trichotomously branched and 1–2 feet high, with alternate spreading branches. Cauline leaves sessile, the lower 2 inches long, oblong-lanceolate or oblong, acute, upper uncial, acuminate, with curled margins. Calyx 8–10 lines long, 10 ribbed, venulose, teeth subulate, 1 1/2–2 lines long. Petals white or reddish, their claws longer than the calyx, lamina bifid, the lobes denticulate: corona very short. Capsule ovate; thecaphore variable. Known from S. noctiflora, L., which it greatly resembles, by the undulate leaves, the longer calyx, and chiefly by the thecaphore, which is very short or scarcely any in S. noctiflora. It differs from the following by its white flowers.