Leaf blades drying bronze or greyish-green, 4–11.2 × 1.5–5(6.5) cm, oblanceolate to oblong or less often obovate, obtuse, acute or shortly acuminate at the apex, cuneate at the base, glabrous to sparsely pubescent above, glabrous except for the nerves or pubescent beneath; lateral nerves in 8–10 main pairs; domatia absent or sometimes with a few axils with denser hairs; bacterial nodules small, dot-like, few, scattered; petioles short, 1.5–5 mm long; stipules 0.4–1.2 cm long, triangular with a stiff acumen, glabrous or pubescent outside.
Inflorescences compact, (1.8)2–4 cm across (excluding corollas); primary inflorescence branches 1.5–2 mm long; secondary branches very reduced; pedicels 1–2 mm long, glabrous or pubescent; bracts c. 2 mm long, stipule-like.
Corolla white (or ?lavender); tube only shortly exceeding the calyx lobes, 0.75–1.4 cm long, 1–1.25 mm wide at the top, glabrous outside, not bearded at the throat; lobes 4–6 × 1.5–2 mm, ± oblong, acuminate.
Calyx tube 1–1.25 mm long, glabrous or densely pubescent; limb-tube 0.75–1 mm long; lobes 0.65–13 × 0.75–1.5 mm, linear-lanceolate, pubescent or ciliate.
Bush or small tree, 1–3 m tall; young branches glabrous to pubescent; older branches covered with reddish-brown or grey bark.
Inflorescence-supporting branches 3–10.5 cm long, slender, bearing 2–3 pairs of leaves clustered at the apex.
Fruit pale green, 7 mm across, crowned by persistent calyx limb.
Seed greyish, c. 4 mm wide, very finely rugulose on convex face.