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FOC | Family List | FOC Vol. 17 | Lamiaceae | Rubiteucris

1. Rubiteucris palmata (Bentham ex J. D. Hooker) Kudô, Mem. Fac. Sci. Taihoku Imp. Univ. 2: 297. 1929.

掌叶石蚕 zhang ye shi can

Teucrium palmatum Bentham ex J. D. Hooker, Fl. Brit. India 4: 702. 1885; Caryopteris mairei H. Léveillé.

Stems erect, 20-60 cm tall, glabrous or subglabrous. Petiole 2-4 cm, basal petioles longest; leaf blade ovate-triangular to cordate, 5-10 × 2-4 cm, undivided to 3-palmatisect or nearly palmately 3-foliolate, membranous, adaxially pubescent or subglabrous, abaxially sparsely pilose, base cuneate to subcordate, margin mucronate-serrate, apex acute to acuminate; middle lobe rhombic-ovate; lateral lobes smaller, obliquely cuneate at base, and crenate. Thyrses 4-6 cm, cymes 1-3-flowered; bracts slightly shorter than pedicel; bracteoles ca. 1.5 mm. Pedicel 3-4 mm, pubescent. Calyx campanulate, ca. 5 × 5 mm, pubescent outside, tube ca. 2 mm; teeth of upper lip ovate-triangular, subequal; teeth of lower lip lanceolate, apically acuminate. Corolla white, 8-10 mm, sparsely pubescent outside, tube ca. 2 × as long as calyx; lobes of upper lip erect, ovate-triangular; middle lobe of lower lip obovate-spatulate, ca. 3 × as long as lateral lobes, entire or sometimes 3-undulate at apex, lateral lobes ovate. Nutlets brownish, 2-2.3 × 1.5-1.7 mm. Fl. Jul-Aug.

Moist fertile soil in subalpine coniferous forests; 2000-3000 m. Gansu, Guizhou, Hubei, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan [India].


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