Description from Flora of China
Perennials, 6-20 cm tall, white villous. Primary root short; fibrous roots numerous, slender. Stems 1-5, unbranched, creeping for a short distance then ascending. Basal leaves numerous, rosulate; leaf blade obovate-spatulate, 1.5-9 cm including petiole, base tapering, margin undulate and toothed, or irregularly crenate. Stem leaves opposite, 2-4 pairs, rarely alternate, 1/3-1/2 as large as basal leaves; petiole short; leaf blade obovate to suborbicular, margin coarsely serrate. Racemes terminal, 3-12-flowered; bracts ovate-lanceolate, membranous, ca. 2 mm. Pedicel less than 1 cm. Calyx funnelform, 6-7 mm; lobes ovate-oblong, as long as tube, apex obtuse or apiculate. Corolla blue-purple, 1-1.6 cm; lower lip rounded, slightly exserted, middle lobe shorter than lateral lobes; upper lip lobes ovate to oblong. Ovary glabrous. Fl. Mar-Apr.
* Moist sparse forests, hilly areas, grassland along trails; 100-800 m. Hunan, Jiangxi.