Herbs, erect, 10-30 cm tall, branched. Stems 4-sided, succulent, glabrous. Petiole (0.8-)1.2-2.8 cm, narrowly winged; leaf blade broadly ovate, ovate, or rarely sublanceolate, (2-)5-10 × (1-)2.5-4.5 cm, membranous, abaxially puberulous or glabrescent, adaxially sparsely strigose and with or without white spots, secondary veins 1 or 2 on each side of midvein, base cuneate to subround and slightly decurrent, margin serrulate, apex acuminate. Inflorescences terminal, cymes, 1-3-flowered, with 2 bracts at base; bracts subsessile, foliaceous, ovate. Pedicel 2-6 mm, 4-sided, narrowly winged on angles. Hypanthium ca. 5 mm, 4-sided, narrowly winged on angles; apex of calyx lobes truncate and with a membranous disk, disk margin fimbriate. Petals pink, obovate, ca. 7 mm, oblique, apex truncate. Stamens equal; connective decurrent, forming a short spur or minute bulge. Ovary with a membranous crown, crown margin repand. Capsule cup-shaped, 4-sided, membranous crown exserted from hypanthium. Fl. Aug-Oct, fr. Sep-Jan.
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