Description from Flora of China
Herbs perennial. Stems ca. 34 cm tall, erect, leafless basally, rooting from basal nodes, branched apically; branches finely pubescent. Petiole 3.5-6 mm, finely pubescent; leaf blade ovate, 2-3.8 × 1-2.2 cm, ± leathery, densely finely pubescent, soon subglabrous, base cuneate, margin remotely 3- or 4-crenate, apex acute. Racemes terminal, 4-6.5 cm; bracts sessile, lanceolate, 6.5-8 × 2.5-3.5 mm, pubescent or subglabrous, margin entire. Pedicel 3-4 mm, densely pubescent. Calyx to 5 mm, pubescent outside; scutellum spreading, semicircular, ca. 2 mm. Corolla white purplish, to 1.6 cm, densely puberulent outside; tube ca. 1.3 cm, suberect, slightly saccate at base; middle lobe of lower lip ovate, base ca. 3.5 mm wide, apex emarginate; lateral lobes ovate, ca. 2 mm wide. Nutlets unknown. Fl. Apr.
* Open roadsides. Guangdong (Raoping Xian).