Herbs perennial, 30-50 cm. Stems pubescent, leafless at base. Leaves triangular-to rhombic-ovate, 4-6 × 3-4 cm, thin papery, densely gray pilose, abaxially sparsely red glandular, base cuneate-decurrent, margin crenulate, apex obtuse, lateral veins 3-paired. Panicles terminal, lax, 5-20 cm, glandular puberulent; cymes pedunculate, 3-7-flowered; upper floral leaves bractlike, narrowly ovate to ovate-lanceolate, longer than peduncles, margin entire. Pedicel 2-3 mm. Calyx campanulate, ca. 4 mm, glandular pubescent, sparsely dark brown glandular, slightly 2-lipped; teeth ovate-triangular, lower 2 slightly longer, apex obtuse; fruiting calyx slightly dilated, conspicuously 2-lipped. Corolla white, with purple spots or bluish on upper lip, sparsely pubescent, red-brown glandular, tube ca. 4 mm, upper lip ca. 3 mm, lower lip ca. 3.5 mm. Stamens and style slightly exserted. Nutlets yellowish white, ovoid, ca. 1.3 × 0.8 mm. Fl. Jun-Sep, fr. Aug-Oct.
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