Stem apparently of scrambling habit, minutely scabrid. Leaves opposite or alternate; petiole 1/2–1 lin. long; blade 1/2–1 1/3 in. long, 1/3– 2/3 in. broad, oblong, obtuse, apiculate, rounded or subcuneate at the base. Cymes axillary sessile or subsessile, about 2/3 in long and 3/4 in. in expanse, 7–15-flowered; bracts minute, ovate, acute; pedicels 1 1/2–2 lin. long, glabrous. Sepals 1 lin. long, 2/3 lin. broad, oblong, obtuse, glabrous. Corolla quite glabrous inside and out; tube 1 1/2 lin. long, campanulate; lobes 3 lin. long, 1 lin. broad, narrowly oblong, obtuse, erect or ascending; sinus-pockets produced into linear truncate or minutely bifid teeth 1/4 lin. long, resembling a second series of coronal-lobes. Coronal-lobes arising from the middle of the corolla-tube, 1/3 lin. long, clavate, obtuse, glabrous. Staminal column 1/2 lin. long; anthers with subulate tips, connivent in a cone.