Herbs perennial. Stems 9-27 cm tall, 0.8-1.2 mm in diam., densely antrorse pubescent. Petiole 5-14 mm; leaf blade triangular-ovate to ovate, 1.5-3.2 × 1.2-2.4 cm, membranous to papery, sparsely fine pilose, densely pilose along veins abaxially, sometimes glabrous adaxially, base subtruncate, rounded, or shallowly cordate, margin remotely 4-6-dentate-serrate, apex acute to obtuse. Racemes terminal, 4-9 cm; bracts subsessile to short petiolate, ovate to rhombic, 2-2.5 mm, margin entire to few dentate, apex obtuse. Pedicel 2-3 mm, densely glandular pubescent. Calyx ca. 2 mm, 3-4(-6) mm in fruit, pubescent outside; scutellum ca. 1 mm, to 3 mm in fruit. Corolla blue, 1.2-1.4 cm, sparsely puberulent or glandular puberulent outside, sparsely pubescent inside; tube base slightly bent, throat to 2.2 mm wide; middle lobe of lower lip spreading, suboblong, sides constricted, apex emarginate; lateral lobes ovate. Nutlet chestnut brown, ellipsoid-ovoid to triquetrous ovoid, ca. 1 mm, tuberculate, adaxially umbonate at middle. Fl. Jul-Aug, fr. Aug.
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