Rhizome terete, 5--14 mm thick. Stem arching, 20--50(--100) cm, glabrous, angled. Leaves 7--12, alternate; petiole short; leaf blade abaxially glaucous, elliptic to ovate-oblong, 5--12(--20) × 3--6(--8) cm, often smooth, sometimes papillose-scabrous on veins, apex acuminate and obtuse tipped. Inflorescences 1--4(--8)-flowered; peduncle usually 1--1.5 cm; bracts small or absent. Flowers pendulous; pedicel 5--10(--20) mm. Perianth yellowish green to white, cylindric to campanulate-cylindric, 1.3--2(--2.5) cm; lobes ca. 3 mm. Filaments filiform, smooth or verruculose; anthers ca. 4 mm. Ovary 3--4 mm. Style 1--1.4 cm, included. Berries blue-black, 7--10(--12) mm in diam., 7--9-seeded. Fl. May--Jun, fr. Jul--Sep. 2 n = (18*), 20*, (21, 22*, 23, 26, 28, 29, 30, 40*).
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A herb. It has rhizomes or underground stems. They are 5-14 mm thick. The stem arches over. It is 20-50 cm high. It is angled. There are 7-12 leaves which are alternate. The leaf stalk is short. The leaf blade is oval and 5-12 cm long by 3-6 cm wide. It tapers to the tip. The flowering stalk has 1-4 flowers. The flowers hang down. They are yellowish green. The fruit is a berry which is blue black. It is 7-10 mm across and has 7-9 seeds.
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