Description from Flora of China
Plectranthus adenoloma Handel-Mazzetti, Symb. Sin. 7: 938. 1936; Rabdosia adenoloma (Handel-Mazzetti) H. Hara.
Shrubs. Stems ca. 90 cm tall, erect, much branched; branches densely whitish stellate tomentose, glabrescent. Stem leaves opposite; petiole 0.5-1 cm, densely gray stellate tomentose; leaf blade narrowly ovate to orbicular-ovate, 2-3.5 × 1.2-1.7 cm, papery, adaxially densely gray stellate tomentose, with immersed veins, abaxially densely fulvous stellate tomentose, with elevated veins, base broadly cuneate, margin crenate with a brown gland at tooth apex abaxially, entire along basal 1/3, apex obtuse to rounded. Panicles terminal, 3-5 cm; cymes 3-5-flowered, densely stellate tomentose; floral leaves and bracts longer than cymes. Pedicel 2-4 mm. Calyx campanulate, ca. 2 mm, densely fulvous stellate tomentose outside; teeth equal, triangular, ca. 1/3 as long as calyx. Corolla purple-red, ca. 7 mm, sparsely pilose outside, tube slightly exserted, limb 2-lipped. Stamens included. Style nearly included. Nutlets unknown. Fl. Jul.
* Open stony hills; 2300-3300 m. Sichuan, Yunnan.