Tall herb, 1-1.5 m. Stem and branches hoary-tomentose. Leaves membranaceous, ovate or elliptic, 2-6 by 1.5-4 cm, obtuse, base cuneate, entire; margin elsewhere undulate-crenate, tomentose on both surfaces; petiole 0.5-1 cm. Flowers numerous (c. 20-30) in dense clusters, forming false spikes and disposed in terminal panicles 15 cm or more long, and 5-8 cm Ø. Pedicels subsessile, 1-2 mm long. Calyx villous and glandular-dotted, 2 mm long, in fruit 2.5-3 mm (the median teeth, in some fruiting specimens, e.g. WOMERSLEY NGF 11010, become broadened with a broadly acute to rounded tip), declinate, 5-toothed, the upper tooth broadly ovate, obtuse, not decurrent, the median and lower teeth subulate, acute, incurved. Corolla pale blue or lilac, with orange glands on outside surface of the lips, 6 mm long, declinate and slightly gibbous on the base of the upper side below the middle. Stamens epicorol-line. Nutlets rounded, flattened, subtriquetrous, 0.8 mm Ø, glandular-dotted.
Open places and thickets, savannahs, coastal coral limestone and sea-cliffs, from sea-level to c. 1500 m. Fl, March-Aug.
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Open places, thickets, savannah and on coastal rocks, at elevations up to 1,500 metres.
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