A climbing shrub, perfectly glabrous; branches slender, fistular. Leaves lanceolate to oblong-lanceolate, acuminate, long attenuate at the base, 4–6 in. long, 1–1 3/4 in. broad, chartaceous, olive-green when dry; secondary nerves 8–10 on each side, faint, oblique, curved; petiole slender, 3–4 lin. long. Inflorescences few- to many-flowered, corymbiform; peduncle slender, 1/4– 1/2 in. long; pedicels slender, up to 5 lin. long. Calyx almost 1 1/2 lin. long; sepals ovate, obtuse, ciliolate, eglandular. Corolla white; tube cylindric, gradually widened at the base, not twisted, 6 lin. long, villous within from the base of the anthers upwards; lobes linear, acuminate, as long as the tube, very wavy. Anthers 2 1/2 lin. long. Style very short. Fruit slightly winged (Pierre).
