Herbs perennial. Stems to 24 cm, base glabrous, apex sparsely hirsute. Petiole to 2.5 cm, winged in basal leaves, obsolete in upper leaves; leaf blade cuneate, 1-1.5 × 0.5-2 cm, pinnatipartite; lobes oblong, 2-7 mm, transparent glandular, apex mucronate or rounded, not spinescent. Verticillasters ca. 6-flowered; bracteoles spinescent, to 7 mm, glabrous. Calyx campanulate, ca. 10 × 6 mm, glabrous; teeth triangular, ca. 2 mm, subequal, apex spinescent, spines 1.5-2 mm. Corolla reddish, 2.5 cm, white villous; upper lip 1.7-1.9 cm × 7 mm, lobules subtruncate; lower lip 1-1.1 cm, pubescent; middle lobe obcordate, ca. 4 × 9 mm; lateral lobes triangular, ca. 3 mm. Anterior stamens ca. 1.1 cm, posterior stamens 8-9 mm; filament base pubescent. Ovary glabrous. Nutlets flattened-obconical, ca. 2.5 × 1.7 mm, apex truncate. Fl. Jul, fr. Sep.
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