Petiole to 7 cm, brown woolly; leaf blade sometimes slightly falcate, narrowly to broadly elliptic to ovate or obovate, 2-12 X 1-5 cm, adaxially woolly or sericeous to glabrescent or sparsely hirsute, abaxially pale brown woolly to glabrescent, densely brown woolly along veins, base sometimes oblique, cuneate to cordate, margin serrate to subentire, serrulate to crenulate, or crenate-dentate, apex rounded to short acuminate; lateral veins 7-10 on each side of midrib, distinct. Cymes 4-11-flowered; peduncle 6-15 cm, sparsely brownish woolly or pubescent; bracts 2, linear to narrowly ovate, 3-10 X 0.8-2 mm, brown woolly or pubescent, margin entire. Pedicel 0.5-2.5 cm. Calyx segments narrowly triangular to lanceolate or narrowly ovate, 2.5-6 mm, margin entire. Corolla purple, 1.6-2.8 cm, outside sparsely pubescent; tube cylindric, narrowed at mouth, 1-1.5 cm X 3-6 mm; limb 2-lipped; adaxial lip 2-sect from base to 2-lobed from middle, all lobes 4-10 X 1.5-4 mm. Stamens adnate to corolla 2-6 mm above base, 7-10 mm; filaments slender, glabrous; anthers broadly oblong, 2-loculed, dehiscing longitudinally, connective glabrous; staminode 1, 3-3.5 mm. Disc 1.6-2 mm, subentire. Pistil 0.8-1.3 cm, glabrous. Stigma 1, disc-shaped. Capsule 2.4-4.5 cm. Fl. May-Sep, fr. Aug-Nov.
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