Petiole to 8 cm, densely light brown woolly to pannose; leaf blade elliptic to ovate or ovate-orbicular, (1.7-)3-17 X 1.5-8 cm, adaxially densely pubescent, abaxially densely pubescent to densely woolly, densely brown woolly along veins, base oblique, cordate to cuneate, margin shallowly serrate or crenate to entire, apex rounded to acute; lateral veins 6-9 on each side of midrib, prominent. Cymes 8-15-flowered; peduncle 2-22 cm, densely pale brown woolly to pubescent; bracts 2, subulate to linear or narrowly lanceolate, 4-8 X ca. 1 mm, densely pale brown woolly to pubescent, margin entire. Pedicel 0.5-1.5 cm. Calyx segments elliptic-lanceolate to linear, rarely ovate, 4-7 mm, margin entire. Corolla purple to blue, 0.7-1.5 cm, outside pubescent to puberulent; tube broadly tubular to narrowly funnelform, gradually ampliate from base to mouth, 5.5-10 X 3-6 mm; limb slightly 2-lipped; adaxial lip 2-sect from near base, lobes 2.7-4(-5) X 2.4-3.8 mm. Stamens adnate to corolla 0.5-5 mm above base, 5-10 mm; filaments slender, glabrous to pubescent; anthers broadly oblong, 2-loculed, dehiscing longitudinally, connective glabrous to puberulent; staminode 1, ca. 0.2 mm. Disc ca. 0.8 mm, entire. Pistil 9-10 mm, glabrous. Stigma 1, disc-shaped. Capsule 2-3.5 cm. Fl. Apr-Oct, fr. Aug-Nov.
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