Description from Flora of China
Shrublets or herbs, to 20 cm tall, creeping, branched. Stems terete, densely reddish brown pubescent. Petiole 0.5-1.5 cm, densely pubescent; leaf blade ovate to ovate-orbicular, 0.8-1.7(-2) × 0.8-1.7(-2) cm, stiffly papery to nearly papery, abaxially only rarely strigose on veins, adaxially densely pubescent and rarely strigose, secondary veins 2 on each side of midvein, base broadly cuneate to nearly cordate, margin entire and ciliate, apex broadly acute. Inflorescences terminal, cymes, 1-3-flowered. Pedicel 1.3-1.5 cm, densely pubescent and with glandular trichomes. Hypanthium campanulate, ca. 3 mm, 4-sided. Calyx lobes linear, 3-4 mm. Petals lavender red, oblong, ca. 9 × 6 mm, slightly oblique, apex abruptly acute. Longer stamens ca. 7 mm; anthers narrowly lanceolate, slightly curved, ca. 4 mm; connective decurrent and slightly prolonged, shortly spurred at base. Shorter stamens ca. 5.5 mm; anthers lanceolate, ca. 3 mm, tubercular at base; connective decurrent, forming a short spur. Ovary half inferior, ovate, ciliate. Capsule cup-shaped, ca. 5 × 4 mm, 4-sided, 8-ribbed, apex truncate. Fl. Oct.
● Forests, hillsides, moist shaded places. Guangdong, Guangxi, Jiangxi.