Herbs perennial. Stems tufted, 10-30 cm tall, erect, branched from base; branches and stems purplish red, densely villous, glandular pubescent. Leaves sessile, ovate to obovate or ligulate, 4.5-13 × 2.2-6.5 cm, papery, adaxially hairy to subglabrous, densely dark glandular, slightly bullate, abaxially pilose, base broadly cuneate, margin crenate-serrate, subentire near base, apex obtuse to rounded, lateral veins 5-7-paired. Thyrses terminal, rachis tawny villous; bracts ovate, 4-5 × 2.5-3 mm, margin ciliate, apex mucronate to short acuminate. Pedicel ca. 3 mm, tawny villous. Calyx purple-red, broadly tubular, 7-8 × 4.5-5 mm, sparsely villous; upper lip oblate, ca. 3 × 4 mm; anterior teeth of lower lip awned, slightly longer than upper lip, margin ciliolate; fruiting calyx conspicuously reflexed. Corolla reddish to purple, 1.8-1.9 cm, sparsely pubescent; tube straight, ca. 1.4 cm, ca. 2 mm wide at base, ca. 4 mm wide at mouth; upper lip ca. 6 × 8 mm, 4-lobed; lower lip ca. 6 × 5 mm. Stamens included. Nutlets brownish, globose, ca. 2 mm in diam. Fl. Mar-Oct, fr. Jun-Nov.
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