Description from Flora of China
Teucrium wallichianum Bentham, Pl. Asiat. Rar. 2: 19. 1830.
Herbs unbranched, to 80 cm tall. Stem base woody, prostrate, rooting adventitiously, brown, glabrescent, densely retrorse yellow-brown puberulent basally. Petiole 5-7.5 cm, densely yellow-brown puberulent; leaf blade broadly ovate, 10-15 × 5-10 cm, membranous, sparsely white strigose except for puberulent veins when young, adaxially sparsely white strigose with age, base broadly cuneate, abruptly attenuate-decurrent, margin crenate-dentate above base, apex acuminate. Spikes terminal (2-)5-10(-15) cm, densely puberulent; verticillasters 6-flowered; peduncle ca. 1 cm; bracts oblate or subcircular, ca. 6 × 7 mm, membranous, apex abruptly acuminate, ciliolate. Pedicel ca. 2 mm. Calyx ca. 6 mm, sparsely puberulent, 15-veined, membranous, nearly 2-lipped; teeth subequal, broadly ovate-triangular, apex acute. Corolla white, sometimes tinged reddish, ca. 1.3 cm, sparsely puberulent; tube slender, cylindric with slightly dilated throat; lobes of lower lip subcircular. Anther cells 2. Ovary apex tuberculate, hairy. Fl. Aug-Sep.
Hillsides, evergreen broad-leaved forests; 800-1400 m. Xizang (Mêdog Xian) [India, Myanmar].