Shrub to small tree, 3–20 m high. Leaves: petiole 1–5 mm long; lamina ovate to narrowly elliptic, (3–) 4–8 (–10) cm long, 1.5–3 (–4) cm wide, shortly attenuate at base, finely crenate, acuminate at apex, glabrous above, sparsely strigose to almost glabrous beneath, often drying blackish, olive-black or dark olive brown; midrib flattened to sunken above, raised and prominent beneath; veins flattened and faintly visible or obscure above, raised and clearly visible beneath. Inflorescence ± congestedly thyrsiform. Tepals pale green, greenish white to white. Stamens with red tints. Fruiting hypanthium (5–) 9–20 mm long. Achenes (4–) 5–6 mm long, long-plumose; style (5–) 6–10 (–13) mm long.