Herbs perennial. Rootstocks brownish, to 8 mm in diam., apically forked. Stems purplish, numerous, erect, (9-)15-30 cm tall, ca. 1 mm in diam., subglabrous except for densely fine retrorse-pilose angles, branched. Petiole 1-1.5 mm; leaf blade ovate to elliptic-ovate, (0.9-)1.5-3 × (0.4-)0.9-1.2 cm, papery, sparsely fine pilose, base rounded to shallowly cordate, margin undulate-crenulate, apex acute. Racemes terminal, (3-)6-12 cm, mostly white glandular pilose; bracts sessile to short petiolate, narrowly elliptic to oblong, 3-8 × 1.5-3.5 mm, base cuneate, all but lowermost ones entire, ciliate, apex acute. Pedicel 1.8-3 mm. Calyx ca. 2.5 mm, ca. 5 mm in fruit; scutellum semicircular, spreading, ca. 1 mm, to 2.5 mm in fruit. Corolla purple or dark blue, 1.8-2 cm, densely and finely white glandular pilose outside, glabrous inside; tube saccate, sharply bent, throat to 3.5 mm wide; middle lobe of lower lip subcircular, ca. 4.5 mm in diam.; lateral lobes ovate, ca. 1.5 mm wide. Nutlets unknown. Fl. Jun-Jul, fr. Jul-Aug.
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