Plants perennial. Rhizomes with brown scalelike leaves. Stems numerous, ascending or prostrate, 15-50 cm tall, 1.5-3 mm in diam., base with brown scalelike leaves and dense, crisped, gray, simple, very short glandular hairs. Petiole 6-8.5 mm basally, ca. 2 mm upward; leaf blade ovate to rhombic-ovate, to 1.7 × 0.8 cm, densely gray stellate tomentose, base cuneate, margin serrate above base, apex acuminate to obtuse. Verticillasters in terminal, broadly ovoid or subglobose spikes, rarely remote basally; floral leaves and bracts tinged blue-purple, densely villous, with short glandular hairs and yellow glands; bracts linear, 4.5-6 mm. Calyx tinged blue-purple, 7-8 × 2-3 mm, pubescent and glandular as bracts; teeth oblong-triangular, 2-2.5 × 1-1.5 mm, apex acuminate, equal or anterior 2 slightly narrower, as long as 2/5-1/2 of calyx tube. Corolla bluish, pubescent, 1.6-1.8 cm; tube exserted; upper lip (2.5-)3 mm; middle lobe of lower lip 4.5-5 × 7-8 mm, base with claw 0.4-0.6 cm. Nutlets dark brown, oblong-ellipsoid, 1.6-2 × 0.7-1.25 mm. Fl. Jun-Jul, fr. Jul, (specimens not seen).
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