Herbs perennial. Stems erect, ca. 2 mm wide, densely antrorse pubescent, internodes much longer than leaves. Petiole 7-10 mm; leaf blade ± triangular, 1.7-3.3 × 2-2.5 cm, ± papery, appressed pubescent, base shallowly cordate, margin 5-9-crenate-dentate, apex obtuse. Racemes terminal, to 9.5 cm; bracts petiolate, lanceolate, 3-4 mm, basally sessile, linear, ca. 2 cm, densely pubescent. Pedicel ca. 2 mm, densely glandular puberulent. Calyx ca. 4 mm, densely glandular puberulent outside; scutellum spreading, ca. 2 mm. Corolla purple, 2.3-2.7 cm, sparsely glandular puberulent outside, glabrous inside; tube straight, base slightly bent, throat to 5 mm wide; middle lobe of lower lip broadly triangular-ovate, to 7 mm wide, apex emarginate; lateral lobes ovate, ca. 2.5 mm wide. Fl. Jun.
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