Rhizome ± moniliform, 5--7 mm thick, rather slender. Stem erect, 15--40 cm, glabrous. Leaves 5--9, alternate; petiole short; leaf blade ovate-elliptic or elliptic. 5--7 × 2--4 cm, glabrous, apex shortly acuminate. Inflorescences 1-or 2-flowered; peduncle and pedicel 1--2 cm; bracts absent. Perianth yellowish green, cylindric, slightly constricted near mouth, 2--3 cm; lobes ca. 3 mm. Filaments slightly curved, compressed, 2--4 mm, free part papillose or shortly cottony; anthers ca. 5 mm. Ovary 4--5 mm. Style 1.7--2 cm. Berries ca. 7 mm in diam., 4--7-seeded. Fl. May--Jun, fr. Sep--Oct.
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