Plants perennial. Stems 1 or 2, ascending, 50-80 cm, finely pubescent or glabrescent. Petiole 2-3 × as long as blade; leaf blade broadly ovate-triangular to subcircular, 8-19 × ca. 4-19 cm, adaxially pubescent, abaxially spreading pilose especially on veins, without glands, base cordate to hastate, margin irregularly double crenate to subdentate, ciliate, apex acute to subobtuse. Verticillasters 2-flowered, in terminal racemes or raceme-panicles; rachis somewhat densely tawny or brownish pilose, glandular hairy; bracts broadly ovate to subcircular, 0.5-1.5 cm, mostly entire but lower bracts dentate. Calyx broadly campanulate, truncate at mouth, scarcely 2-lipped, tinged a brilliant color, 1-1.5 × 1-1.5 cm, sparsely glandular, glandular pilose on margin and veins. Corolla green-white, with violet spots, 1.8-2.2 cm; tube short tubular at base, adaxially dilated at apex, exserted, subglabrous, densely white pilose annulate inside; upper lip circular, 3-4 mm wide, densely white pubescent; lower lip subequal upper, middle lobe circular, undulate; lateral lobes ovate, ciliate. Connectives short, arcuate (specimens not seen).
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