狭叶黄精 xia ye huang jing

Polygonatum verticillatum (Linnaeus) Allioni var. stenophyllum (Maximowicz) Baker.

Rhizome terete, 4--6 mm thick, with slightly swollen annual knots. Stem erect, 60--110 cm, glabrous. Leaves many, in whorls of 4--6, sessile, abaxially slightly glaucous, linear-lanceolate, 6--10 cm × 3--8 mm, glabrous, apex acuminate. Inflorescences 2-flowered; peduncle reflexed, 2--4 mm; bracts white, 2--3 mm, membranous. Pedicel 2--3 mm. Perianth white, cylindric, slightly constricted near mouth, 0.8--1.2 cm; lobes 2--3 mm. Filaments filiform, ca. 1 mm; anthers ca. 2 mm. Ovary ca. 2.5 mm. Style ca. 3.5 mm. Fl. Jun. 2 n = 24, 30.

Forests, thickets. ?Hebei, Heilongjiang, Jilin, Liaoning, ?Nei Mongol [Korea, Russia (Far East)].