Teucrium ornatum Hemsley, J. Linn. Soc., Bot. 26: 313. 1890; Orthosiphon delavayi H. Léveillé.

Stems erect, 50-80 cm tall, glabrous, branched from base. Petiole 3-10 mm; leaf blade ovate-lanceolate to linear-oblong, 7-13 × 1.3-3.5 cm, glabrous, lateral veins 6-8-paired, base cuneate-decurrent, margin remotely dentate to sometimes entire, apex caudate-acuminate or sometimes falcate-acuminate. Verticillasters widely spaced, secund, in terminal and axillary glabrous thyrses, axillary thyrses slightly shorter than leaves; bracts ca. 5 × 1 mm, early deciduous. Pedicel ca. 3 mm, glabrous. Calyx ca. 4.7 × 4.5 mm, tube ca. 2 mm, glabrous outside, pilose annulate at throat; middle tooth of upper lip circular, ca. 3 mm in diam., apex acute, lateral teeth ovate; lower lip slightly longer than upper. Corolla purplish red, ca. 1.1 cm, very sparsely pubescent outside, with yellow glands, glabrous inside; tube to 8 mm, ca. 1.2 mm wide basally, dilated apically; lobes of upper lip obliquely triangular-ovate, ca. 2 mm; middle lobe of lower lip ovate-spatulate, ca. 4 × 2.8 mm, apex apiculate; lateral lobes oblong, ca. 2.5 × 1 mm. Nutlets ca. 1 mm in diam. Fl. Jun-Aug, fr. Aug-Nov.

* Forested slopes; 700-2600 m. Anhui, Guizhou, Hubei, Shaanxi, Sichuan, Yunnan.