Plants 35--50 cm tall. Rhizome stout, abbreviated. Stems tufted. Leaves sessile, broadly rhombic-orbicular or ovate-orbicular, 10--17 × 7--17 cm. Peduncle 1.5--4 cm. Flowers 3--5 cm wide. Outer tepals green, broadly lanceolate to oblong-lanceolate, 3--3.5 × 0.7--1.2 cm; inner ones white, elliptic or obovate, 3--3.8 × 1--1.6 cm. Stamens ca. 2/5 as long as tepals; filaments 3--4 mm; anthers usually 7--10 mm, with slightly convex connective apically. Ovary subconical-ovoid; stigma rather thick. Berry ovoid-globose, 1.8--2.8 cm in diam. Fl. Jun, fr. Aug. 2 n = 10*, 24.
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