Stems erect, (0.3-)1-4 m, branches spreading. Leaves: petiole 1-3 mm; blade 3-8 cm, surfaces pilose on major veins abaxially. Inflorescences (deciduous around anthesis), erect or ascending, secund, straight, 3-5 cm; bracts ± deciduous, lanceolate, 4-5 mm. Flowers: calyx campanulate, sepals lanceolate, 2-3 mm, apex acute; corolla white, 7-9 mm, lobes recurved, glabrous; stamens 2-4 mm; anthers 4-awned, ca. 1.5 mm, thecae divergent distally; ovary glabrous. Capsules 2-3 mm wide. Seeds not winged, wedge-to crescent-shaped, not flat, 1-1.2 mm. 2n = 22.
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