Subshrubs. Rhizomes woody. Stems yellowish green or slightly purplish, numerous, 10-45 cm tall, ascending to suberect, ± appressed retrorse pubescent, spreading villous especially upward. Leaves petiolate to subsessile; basal petioles to 1.5 cm, upper ones ca. 1/2 as long as blades and pubescent as stems; leaf blade oblong-ovate to ovate, 1-4 × 0.6-2 cm, adaxially sparsely pilose or hirsute, abaxially sparsely pilose or hirsute along veins otherwise glandular, lateral veins impressed adaxially, base broadly cuneate to shallowly cordate, margin shallowly 3-7-crenate-serrate, apex obtuse to sometimes acute. Racemes ca. 3 cm, lax; basal bracts ovate, to 1.4 × 0.9 cm, sparsely villous, stipitate glandular on veins and margin otherwise subglabrous, apex acute; upper bracts purple-red. Pedicel 2-3 mm, flat. Calyx ca. 2 mm, villous outside, short stipitate glandular; scutellum 3 mm. Corolla yellow, 2.2-3.5 cm, glandular pubescent outside; tube bent in front at base, ca. 2 mm wide at middle, gradually dilated to 6 mm wide at throat; upper lip ca. 6 mm wide; middle lobe of lower lip broadly ovate, ca. 7 mm wide, apex emarginate; lateral lobes ovate, ca. 2 mm. Nutlets triquetrous, ovoid, ca. 1.5 mm. Fl. Aug, fr. Sep.
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