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A scandent shrub, 50 ft. high; branches terete, very finely rusty-tomentose when young, soon glabrescent and black when dry. Leaves opposite or ternate, lanceolate, obtusely acuminate, cuneate at the base, 2 1/2–3 1/2 in. long, 3/4–1 in. broad, shining and glabrous above, paler, dull and dotted with black glands, and minutely rusty-papillose on the midrib below; secondary nerves scarcely 1 lin. distant, with fainter parallel veins between them; petiole slender, 2–3 lin. long. Panicle very many-flowered, compound, often leafy, finely rusty-tomentose all over; peduncle 1/2–1 in. long; bracts minute, ovate to lanceolate, acute; pedicels up to 1/2 lin. long. Calyx 1/2 lin. long. Corolla glabrous, 2 lin. long in the mature bud; tube 3/4 lin. long. Anthers 1/2 lin. long.