Virgate shrub 0.3-0.9 m tall; stems ascending, branched, subglabrous to hispid. Leaves opposite or ternate, often fasciculate on short shoots, shortly petiolate; blade subcoriaceous, lanceolate-elliptic to ovate or obovate, 14-20 x 7-10 mm, subglabrous to pubescent, lower surface reticulate, gland-dots not obvious, apex acute to obtuse, base cuneate to obtuse, margin finely serrate to subentire; petiole 2-4 mm long. Inflorescence simple, 50-170 mm long; verticils 3-6(-8)-flowered, 10-15 mm apart; rhachis finely glandular-puberulous; bracts ovate, acuminate, 5-8 mm long. Calyx 10-16 mm long at fruiting stage, puberulous. Corolla whitish to pale or deep mauve; tube narrowly cylindrical, straight, 20-35 mm long; upper lip erect, 5-7 mm long; lower lip concave, 6 mm long. Stamens exserted from the throat by 5-6 mm; upper 2 filaments attached near the base of the tube, pubescent below. Stigma shortly bilobed.
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