Scandent shrub. Branchlets terete, slender, glabrous. Leaves lax, subovate-or oblong-elliptic, apex acuminate, tip obtuse, base cuneate, subcoriaceous, glabrous, remotely and ± indistinctly subserrate-crenulate, 5-7 by 2-4 cm, midrib and nerves slightly prominent above, more distinctly so beneath, nerves 2(-3) pairs, high curved-ascending from and a little from above the base; petiole 4-6(-7) by c. 1 mm. Flowers in 1-3-flowered axillary fascicles. Perulae minute. Pedicels slender, subdensely puberulous in upper half, reddish, 1.5-2 cm. Calyx finely pubescent, tube green, cupular, 1.5-2 by c. 3 mm, limb erect, denticulate, 1-1.5 mm. Corolla tubular, thin, light red, c. 2.2 cm long, c. 4 mm ø, finely pubescent outside, glabrous inside, lobes erect, 1.5 mm. Stamens 6.5 and 5 mm; major stamens: filaments c. 3 mm, laxly hairy towards the connective; cells including tubules 5 mm, tubules close together, connective hardly distinct at their back, indicated merely by a few hairs. Disk glabrous. Style very slender, c. 1.5 cm.