Herbs to 70 cm tall, branched or unbranched. Stems 4-angled to subterete, sulcate, sparsely pubescent. Petiole 0.5-1 cm, grooved, pilose; leaf blade ovate-elliptic to oblong-lanceolate, 2-13.5 × 1.4-4 cm, abaxially glabrous, adaxially pilose toward base or along veins, secondary veins 5-7 on each side of midvein, base rounded to cuneate, margin entire, apex acuminate. Thyrses terminal, 3-10 cm; rachis pilose; peduncle (0.5-)1-3 cm, pubescent; cymes 1-6-flowered; bracts triangular-subulate, ca. 1.5 × 0.5 mm, pilose; bracteoles similar to bracts. Pedicel 1-3 mm. Calyx 3-4 mm, outside pilose; lobes linear, apex acute. Corolla white or yellowish green, 1-1.5 cm, outside sparsely pubescent to subglabrous, inside glabrous; tube ca. 1.5 mm wide for 4-5 mm; lower lip 6-7 × 3.5-5 mm, lobes ovate and ca. 1 × 1 mm; upper lip ovate, 5-6 × ca. 5 mm. Staminal filaments 4-5 mm, glabrous; thecae ca. 2 mm. Ovary glabrous; style 0.9-1.1 cm, sparsely hirsute to subglabrous. Capsule and seeds not seen. Fl. Oct.
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