Stachys chinensis Bunge ex Benth.

Herbs erect, perennial. Stems ca. 60 cm, unbranched or branched at base, glabrous, angles and nodes sparsely retrorse villous-hispid. Petiole (0-)2-5 mm; leaf blade oblong-lanceolate, 5.5-8.5 × 1-1.5 cm, sparsely minutely hispid or glabrescent, base subrounded, margin serrate-crenate, apex obtuse. Verticillasters 6-flowered, widely spaced; floral leaves sessile, upper blades lanceolate, villous hispid, sessile, margin subentire; bracteoles spiny, ca. 1 mm. Pedicel short to obsolete. Calyx campanulate, ca. 1 cm, veins and margin villous-hispid, accessory veins inconspicuous; teeth lanceolate, equal, ca. 4 mm, apex acute, spinescent. Corolla purple, ca. 1.5 cm, lips puberulent; tube ca. 8 mm, straight, slightly saccate; upper lip erect, oblong, ca. 4 × 2 mm; lower lip spreading, subcircular, ca. 7 × 7 mm; middle lobe subcircular, ca. 3 × 4 mm, emarginate; lateral lobes ovate, ca. 2 mm wide. Nutlets brown, triquetrous, ovoid, glabrous. Fl. Jun-Aug, fr. Jul-Sep.

Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shanxi [Russia].

Sandy areas, ravines; 0-1000 m.

Stachys aspera Michaux var. chinensis (Bunge ex Bentham) Maximowicz; S. baicalensis Fischer ex Bentham var. chinensis (Bunge ex Bentham) V. Komarov; S. chanetii H. Léveillé.