52. Isodon scoparius (C. Y. Wu & H. W. Li) H. Hara, J. Jap. Bot. 60: 236. 1985.
帚状香茶菜 zhou zhuang xiang cha cai
Rabdosia scoparia C. Y. Wu & H. W. Li, Fl. Yunnan. 1: 777. 1977.
Shrubs 40-100 cm. Branches slender, erect, gray-brown; branchlets reddish brown, densely glandular pubescent. Leaves subsessile, subcircular to ovate-oblong, 1.2-1.8 × 0.6-1.8 cm, ± leathery, glabrous, sparingly yellowish glandular, strongly netted, base rounded, margin serrate, apex obtuse to acute. Cymes on upper half of branchlets, 3-5-flowered, pedunculate, glandular pubescent; floral leaves ovate, margin entire, slightly longer than cymes, gradually reduced toward apex. Pedicel 1.5-3 mm. Calyx broadly campanulate, ca. 3.5 × 5 mm, densely glandular pubescent, slightly 2-lipped; teeth linear-lanceolate, 2.5-3 mm, lower 2 slightly longer; fruiting calyx slightly dilated. Corolla purplish, ca. 8 mm, sparsely pubescent outside, tube ca. 3 mm, upper lip ca. 3 mm, lower lip ca. 5 mm. Stamens exserted. Style exserted. Nutlets unknown. Fl. Jul-Aug.
* Pine forests on limestone mountains; 2300-2900 m. Yunnan (Zhongdian Xian).