Shrubs to 1 m tall, many-branched. Stems terete, nodes usually inflated; branchlets densely appressed setose, glabrescent. Petiole 1-5(-10) cm, densely appressed setose; leaf blade oblong-elliptic to oblong-ovate, 6-14 × 2-6 cm, stiffly papery to papery, abaxially appressed sparsely setose on veins, adaxially densely bullate with a sparse setose line between veins, secondary veins 2 or 3 on each side of midvein, base cuneate, margin denticulate with each tooth having a terminal seta, apex shortly acuminate to acuminate. Inflorescences axillary, cymose, usually 1(-3)-flowered; peduncle ca. 2 mm. Pedicel in fruit less than 0.8 or 1.2-1.8 cm, appressed setose. Petals rose-colored, obovate, ca. 1.4 × 0.9 cm, oblique, glandular ciliate up middle, apex rounded. Stamens equal; filaments ca. 7 mm; anthers lanceolate, ca. 7 mm; connective decurrent, forming a short spur, abaxially tuberculate. Ovary half inferior, ovate, apex with glandular trichomes. Capsule cup-shaped, ca. 7 × 5 mm, 4-sided; hypanthium 8-ribbed. Fl. Oct-Dec, fr. Dec-Feb.
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