Description from Flora of China
Herbs or shrublets, 10-20 cm tall, stoloniferous, many-branched, base woody. Stems with sparse glandular trichomes, glabrescent. Petiole 5-10 mm, both sides with sparse glandular trichomes; leaf blade ovate-elliptic to elliptic, 1.5-3 × 1-2.3 cm, membranous, abaxially scattered furfuraceous, adaxially sparsely strigose, secondary veins 1 or 2 on each side of midvein, base rounded, margin scattered serrate with each tooth tipped by 1 glandular trichome, apex acute to obtuse. Inflorescence terminal, compact scorpioid cymes or subumbellate, 2-5-flowered; peduncle 5-8 mm, with a few glandular trichomes; bracts subulate, ca. 1.5 mm. Pedicel 2-4.5 mm. Hypanthium tubular-funnelform, ca. 5 mm, 3-sided, ± furfuraceous. Calyx lobes shortly triangular-semiorbicular, ca. 1 mm, adaxially glandular furfuraceous, apex apiculate. Petals pink, oblong to oblong-elliptic, with 1 or 2 glandular trichomes at base of ridge, apex acute. Stamens 3, ca. 8.5 mm; anthers ca. 3.5 mm. Ovary flask-shaped, apex with a membranous crown, crown margin abruptly denticulate. Capsule campanulate, 3-sided, apex truncate; hypanthium ca. 6 × 4 mm, glabrous. Fl. Apr, fr. May.
● Forests, mountain slopes, soil among stones. Hainan.