Small tree; young branches glabrous or puberulous; older branches with corky bark.. Leaf-blades oblong to obovate, 16.5–30 cm. long, 5–12 cm. wide, apex acuminate, base acute, papery, often with the tertiary nerves turning blue-black on drying, glabrous above, glabrous or with a puberulous midrib beneath; bacterial nodules dot-shaped or linear, along nerves and a few scattered; petioles 1.5–3 cm. long, glabrous or puberulous; stipule-limbs subtruncate to triangular, 0.2–2 cm. long, apex acute or subulate, often corky around the margin, puberulous or glabrous outside.. Corymbs terminal on very short lateral branches 0.5–1.3 cm. long, bearing 1 pair of immature leaves, compact, 2 cm. across; primary inflorescence-branches up to 4 mm. long; secondary inflorescence branches present; pedicels up to 3 mm. long, glabrous; bracts brown, ± 3 mm. long, papery; bracteoles brown, papery, small.. Calyx glabrous; tube 1–1.5 mm. long; limb-tube 1–1.5 mm. long; lobes narrowly triangular, 2–3 mm. long, ± 0.75 mm. wide at base, acute or attenuate.. Corolla-tube 1.4–1.7 cm. long, 2 mm. wide at top, glabrous outside, not bearded at throat; lobes lanceolate-oblong, 7–8.5 mm. long, 2–2.5 mm. wide, apiculate.. Fruit not known.
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