Shrub or tree 3–18 m. tall; stems glabrous, finely ridged. Leaf-blades oblanceolate-oblong or elliptic, 9–17 cm. long, 2.5–7 cm. wide, obtuse or very shortly obtusely acuminate or subacute at the apex, cuneate at the base, ± coriaceous, glabrous above, pubescent beneath on the sides of the main nerve and on some of the lateral nerves towards the apex of the leaf; lateral nerves 10–14 pairs; petiole 0.5–1 cm. long; stipules triangular, 3–4 mm. long, hairy along the margins. Flowers 1–3, subsessile in the axils of the leaves; bracts small. Calyx white tinged purple; tube turbinate, 2–3 mm. long, quite densely covered with ferruginous hairs; limb 3–4-lobed; joined part 3 mm. long; lobes elliptic, 0.7–1 cm. long, 3.5–8 mm. wide, obtuse, venose, with rather sparse ferruginous hairs particularly about the midnerve, accrescent in fruit. Corolla white to deep violet; tube cylindrical, 1.2–1.6 cm. long, covered above outside with dense pale scaly hairs, throat hairy but lower part of the tube glabrous inside; lobes oblong-lanceolate, 5 mm. long, 2 mm. wide, with dense hairs inside and out. Stamens with tips just exserted. Ovary 3–6-locular; style 1.4 mm. long; stigma-lobes? ± 4, linear-oblong, ± 1 mm. long. Fruit intense blue, ellipsoid, 1.7 cm. long, 1.3 cm. wide, hairy; pyrenes ± 4, woody, grey-brown or chestnut-brown, pyriform (“pip-like”), 5–5.5 mm. long, (2.2–)3–3.2 mm. wide and thick, often pointed at the base.