Soft shrub 0.6-1.2 m tall, branching above; stems slender, hispidulous. Leaves shortly petiolate; blade elliptic or elliptic-oblanceolate to obovate, 10-15 x 3-10 mm, subglabrous to hispidulous, gland-dotted, apex acute to obtuse, base cuneate, margin entire or with a few teeth in the upper half. Inflorescence simple or with a pair of branches near the base, 80-150 mm long; verticils 2-flowered; bracts broadly ovate, 4-6 mm long, caducous. Calyx 7-9 mm long at maturity, glandular-hispid. Corolla pale mauve, 9-12 mm long; tube 7-10 mm long, widening to 4 mm at the mouth; lower lip 2-3 mm long. Stamens well exserted beyond the lower lip; upper pair attached near the base of the tube, filaments pubescent near the base; lower pair united to near the apex. Style shortly bifid.
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