Herbs perennial, rhizomatous, stoloniferous, pubescent or pilose. Stems erect, (30-)45-60 cm tall, pubescent, branched above middle. Petiole to 2 cm, pubescent; leaf blade ovate, ca. 4 × 2.6 cm, largest at mid stem, adaxially sparsely pubescent or pilose, abaxially sometimes purplish and subglabrous or sparsely pilose, base truncate to roundish and slightly decurrent, margin 5-8-double crenate, apex obtuse to acute. Racemes terminal, to 10 cm; lower bracts similar to stem leaves, smaller upward, ovate to ovate-lanceolate, margin entire to ± inconspicuously crenate and ciliolate. Pedicel ca. 3 mm, pubescent. Calyx purple, ca. 2.2 mm, glabrous outside, veins and margin pubescent, oblate, ca. 3.5 × 4.5 mm in fruit; scutellum ca. 1.5 × 1.5 mm. Corolla yellow with purple lines, ca. 2 cm, densely glandular pubescent outside, glabrous inside; tube ca. 1.7 cm, base slightly saccate-geniculate; upper lip oblate, concave, ca. 2.2 mm wide, apex emarginate; middle lobe of lower lip trapeziform, equally 4-lobed, ca. 4.5 mm wide; lateral lobes subcircular, subequal to upper lip. Nutlets unknown. Fl. Jun-Aug.
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