Petiole to 4 cm, densely brown woolly; leaf blade elliptic to ovate, 1.5-3.5(-4) X 1-2.5 cm, adaxially strigose, abaxially densely brown woolly along veins, pubescent between, base slightly oblique, rounded to slightly cordate, margin irregularly serrulate to crenulate-serrate, rarely denticulate, apex obtuse; lateral veins 5 or 6 on each side of midrib, distinct. Cymes 1-5-flowered; peduncle 6-10 cm, sparsely brownish woolly to glabrescent; bracts 2, linear, 3-4 X 0.5-1 mm, brown woolly, margin entire. Pedicel 5-10 mm. Calyx segments linear, 3-5 mm, margin entire. Corolla purple, 1.3-1.5 cm, outside sparsely pubescent; tube cylindric, narrowed at mouth, ca. 10 X 3-4 mm; limb 2-lipped; adaxial lip 2-sect from near base, lobes 4-6 X 1.5-1.6 mm; abaxial lip lobes 2.5-4 X ca. 1.5 mm. Stamens adnate to corolla 4-5 mm above base, ca. 8 mm; filaments slender, glabrous; anthers broadly oblong, 2-loculed, dehiscing longitudinally, connective glabrous; staminode 1, ca. 1.2 mm. Disc ca. 1.5 mm, entire. Pistil ca. 1.1 cm, glabrous. Stigma 1, disc-shaped. Capsule 2-2.6 cm.

* Hunan.