Shrubs 1-2 m tall. Stems woody, grayish, hispid when young. Petiole 3-5 mm, densely brownish hirsute; leaf blade lanceolate, ovate-lanceolate, or elliptic, 2.5-5.5 × 1-2 cm, abaxially sparsely pilose or glabrous but densely brown hairy along veins, adaxially sparsely pilose along veins, base cuneate and decurrent onto petiole, margin entire, apex obtuse to acute. Inflorescences terminal, 7-15 cm; rachis densely yellowish pilose, with flowers fascicled at each node; bracts linear to linear-lanceolate, ca. 3 mm, pilose; bracteoles subulate, ca. 2 mm. Pedicel ca. 2 mm, pilose. Calyx ca. 5 mm; lobes linear-oblong, pilose, apex acute. Corolla white with violet spot on 2 lobes; tube ca. 2.2 cm, outside and inside pilose; lobes 5, ovate, 1.8-1.9 cm. Stamens exserted. Ovary glabrous; style basally sparsely pilose; stigma slightly 2-cleft. Capsule clavate, ca. 2.5 cm. Seeds ovate in outline, ca. 3 mm, verrucose, glabrous. Fl. Feb-May, fr. Jun-Aug.
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