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Corolla lobes ovate-acute to ovate-caudate, 5–10 mm. long, densely hairy on both surfaces and on the margin, the indumentum consisting of turgid cells longest towards the mouth of the corolla tube; corolla tube 8–12 mm. long, of 2 ± equal parts separated by a constriction and with a very small apical opening; outer surface glabrous or pubescent especially in the upper half, inner surface variably pilose in the upper half, especially behind the anthers, ± glabrous below the constriction.
Leaf lamina 5–16·5 x 1·7–6 cm., obovate-oblong, oblong or elliptic, the apex cuspidate or acuminate to a round-tipped acumen, the base tapered; main lateral veins 7–13-paired, looping into a continuous marginal vein, level and inconspicuous on upper surface, slightly raised and quite conspicuous on lower surface; tertiary reticulum not scalariform; midrib impressed above, prominent below.
Stamens sessile, fixed by their lower abaxial surface to the corolla tube just above the median constriction; anthers sagittate, c. 3·5 mm. long; pollen sacs confined to the upper half of the anther, the lower half consisting of two stiff sterile tails flanking a median brush-like retinacle which is firmly adnate to the clavuncle of the gynoecium.
Inflorescences few-or several-flowered cymes or fascicles, these terminal but often appearing lateral by the overtopping growth of axillary shoots; pedicels 2–7 mm. long, glabrous or pubescent; flowers white with yellow tube, the corolla leathery in texture.
Leaves glabrous or petiole and proximal part of lower lamina surface brown appressed-pubescent and soon glabrescent; petiole 4–8 mm. long; leaves drying discolorous, with upper surface blackish green or dark brown and lower surface paler, grey or brown.
Calyx 2·5–4 mm. long, lobes ovate-acute, thinly appressed-pilose on both surfaces, ciliate; a ring of numerous tiny scales present, adnate to the base of the calyx on its adaxial side.
Style densely pilose, widened at apex at level of corolla tube constriction into the clavuncle, then narrowed again into the cylindrical, glabrous, apparently undivided stigma.
Shrub or small tree 1·5–8(12) m. high; young shoots glabrous or brown appressed-pubescent and soon glabrescent; bark of twigs grey, rough with lenticels.
Seeds ¥, 11–15 mm. long, linear, compressed, with apical coma of golden-brown hairs 16–27 mm. long.
Ovary of two completely separate compressed-ovoid carpels c. 1 mm. high, pubescent at the apex.
Fruit of two straight divaricate follicles 5–17·5 cm. long, with rough grey surface.
Creamy-white flowers in axillary and terminal, several to many-flowered fascicles.
Disc bearing 4–5 stout oblong scales c. 1·6 mm. high.
A large shrub or small tree
