Herbs erect, spreading hispid, appressed pubescent. Stems single, branched above. Leaves sessile, ovate-lanceolate or linear-lanceolate, 3-7 × 1-1.5 cm, 3-veined, abaxially densely strigose, sparsely hispid along veins and margin, adaxially scabrous, hispid, or minutely hispid, hairs discoid at base, base rounded or cuneate, apex obtuse. Inflorescences terminal, becoming racemose, stout, 12-15 cm; bracts ovate-lanceolate, 2-3 × 0.5-1.5 cm. Pedicel stout, 5-10 mm. Calyx lobes lanceolate, 7-9 × 1-2 mm, densely hispid and short strigose outside, villous inside. Corolla pink, tubular-campanulate, 1.1-1.2 cm; throat 3-6 mm wide, glabrous inside except midvein of lobe 1-ranked pubescent; nectary ringlike, membranous, glabrous; lobes broadly triangular, ca. 1.5 × 2.5-3 mm, margin revolute. Filaments subulate, 5-5.5 mm, decurrent at base, inserted ca. 3.5 mm above base in corolla tube; anthers laterally united, 7-7.5 mm, mostly exserted, apex sterile, 1.5-2 mm. Style 1.5-1.7 cm, glabrous. Nutlets gray-brown, ca. 3 mm, tuberculate, finely papillate. Fl. and fr. Aug.
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