Adenosma retusilobum Tsoong et Chin, Herbs, 3-10(-35) cm tall. Stems slender, base slightly curved to decumbent, apically sparsely branched. Leaves petiolate; leaf blade ovate to ovate-orbicular, 0.3-2 cm, abaxially densely yellow glandular, adaxially white hairy, base broadly cuneate to subcordate, margin irregularly crenate except for base.

Racemes terminal, villous; bracts foliaceous, decreasing in size upward. Pedicel ca. 1 mm. Bracteoles linear, slightly shorter than calyx. Calyx lobes linear-lanceolate, ca. 3 mm, somewhat unequal, hairy. Corolla pale purple, ca. 4.5 mm; lower lip slightly shorter than upper lip; upper lip ovate-oblong, ca. 2 mm, arched, lobes suboblong and apically deeply notched. Anterior and posterior anthers with only 1 locule fertile. Cap-sule ovoid, ca. 2 mm. Fl. and fr. Aug-Nov.
Fields, along streams; 600-800 m. Guangxi, Yunnan.