五叶黄精 wu ye huang jing

Polygonatum quinquefolium Kitagawa.

Rhizome terete, 3--4 mm thick, slender. Stem erect, 20--30 cm, glabrous. Leaves 4 or 5, alternate; petiole 0.5--1.5 cm; leaf blade elliptic to oblong-elliptic, 5--9 × 1.8--3.5 cm, glabrous, abaxially not glaucous, base tapering, apex shortly acuminate and obtuse tipped. Inflorescences (1 or)2-flowered; peduncle 1--2 cm; bracts (1 or)2, subulate, to 8 mm, membranous, veinless or 1-veined, caducous, or bracts absent. Flowers pendulous; pedicel 1--6 mm. Perianth whitish green, cylindric, 2--2.7 cm; lobes 4--5 mm. Filaments compressed, 3.5--4.5 mm, free part papillose or shortly cottony, apex sometimes swollen-saccate; anthers 4--4.5 mm. Ovary ca. 6 mm. Style 1.5--2 cm. Fl. May--Jun. 2 n = 20.

Forests; 1100--1400 m. Hebei, Jilin, ?Liaoning [Russia (Far East)].