Teucrium bidentatum Hemsl.

Used medicinally.

Herbs erect, perennial. Stems 60-90 cm tall, sparsely retrorse puberulent; branches subhorizontal. Petiole 5-9 mm, puberulent; leaf blade ovate to lanceolate, 4-11 × 1.5-4 cm, glabrous except sparsely puberulent on midrib and veins, abaxially minutely papillate, base cuneate to broadly cuneate-decurrent, margin of apical half 3- or 4-serrate, apex acuminate to caudate-acuminate. Spikes 1.5-4.5 cm, puberulent; verticillasters 2-flowered; bracts ovate-lanceolate, glabrous except ciliate on margin, as long as or longer than pedicel. Pedicel ca. 3 mm, puberulent or subglabrous. Calyx campanulate, swollen in front at base, ca. 4.6 × 4 mm, glabrous except for puberulent base outside, pilose annulate at throat; middle tooth of upper lip oblate, to 3.5 mm wide, lateral teeth subcircular. Corolla white, ca. 1 cm, glabrous; tube slightly exserted, ca. 5 × 1.8 mm; middle lobe of limb subcircular, ca. 3 mm wide, basally constricted; anterior lateral lobes oblong, ca. 1.2 × 0.8 mm; posterior lateral lobes subcircular, ca. 1.2 × 1.5 mm. Stamens ca. 3 × as long as corolla tube. Nutlets yellow-brown, ovoid, ca. 1.2 × 1 mm, netted.

Guangxi, Guizhou, Hubei, Sichuan, Taiwan, Yunnan

* Hilly forests; 1000-1300 m.

Kinostemon bidentatum (Hemsley) Kudo; Plectranthus hanceiformis H. Léveillé; Teucrium bidentatum Hemsley var. purpureum Diels.

Teucrium bidentatum là một loài thực vật có hoa trong họ Hoa môi. Loài này được Hemsl. miêu tả khoa học đầu tiên năm 1891.

二齿香科科（学名：Teucrium bidentatum）为唇形科香科科属下的一个种。