quite glabrous in all parts; leaves opposite, on long petioles, ovato-lanceolate or ovate, obtuse, 3-nerved at base, and faintly penninerved; peduncles axillary, about 5-flowered; flowers pedicellate; bract ovate, acute; calyx repand; unopened corolla much constricted above the urceolate, swollen base, obtuse, glabrous, 5-lobed, the tube splitting, the narrow, spoonshaped lobes erect, pale within. Very nearly related to L. prunifolius; but with opposite, narrower, and more lanceolate leaves, which turn black in drying, and perfectly glabrous flowers, ovate bracts, and nearly truncate calyces. The peduncles and pedicels are longer, and the lobes of the corolla shorter. Leaves 2–3 inches long, 3/4–1 inch wide, occasionally subacute; peduncles and pedicels 4–5 lines long. Flowers 1 1/2 inches long.
