Description from Flora of China
Herbs annual(?). Stems 10-30 cm tall, densely tawny tomentulose. Petiole 1-2 cm; leaf blade ovate to oblong, 2.5-5.5 × 1.7-4.2 cm, papery, adaxially yellow-brown, densely appressed hirtellous, abaxially tawny tomentulose, base broadly cuneate to subrounded, margin shallowly serrate, apex obtuse. Verticillasters 2-flowered. Pedicel ca. 2 mm. Calyx campanulate, ca. 10 × 4.5 mm, puberulent; teeth lanceolate, as long as calyx tube, apex long acuminate. Corolla reddish, ca. 1.8 cm, pubescent, yellowish glandular except for densely villous upper lip outside; tube to 1.2 cm, ca. 1 mm wide at base, to 3.2 mm wide at throat; upper lip straight, oblong, ca. 6 mm, obscurely emarginate, slightly curved; lower lip ca. 6.5 × 7.5 mm, lateral lobes ovate; middle lobe oblate, base constricted, apex emarginate. Nutlets triquetrous, oblong, ca. 3 × 1.2 mm, base attenuate, apex truncate, pubescent. Fl. and fr. Jul-Sep.
* Forests; 800-900 m. Guangdong.