小玉竹 xiao yu zhu

Polygonatum humillimum Nakai; P. officinale Allioni var. humile (Fischer ex Maximowicz) Baker.

Rhizome terete, (2--)3--5 mm thick, slender. Stem erect, (8--)25--50 cm, glabrous. Leaves 7--9(--11), alternate; petiole very short; leaf blade oblong to ovate-elliptic, (4--)5.5--8.5 × 1.5--4 cm, abaxially hispidulous, base obtuse, apex acuminate and obtuse tipped. Inflorescences usually 1-flowered; bracts absent. Flowers pendulous; pedicel 0.8--1.3 cm. Perianth white, tinged with green at apex, cylindric, 1.5--1.7 cm; lobes ca. 2 mm. Filaments slightly compressed, ca. 3 mm, densely verruculose; anthers ca. 3 mm. Ovary ca. 4 mm. Style 1.1--1.3 cm. Berries blue-black, ca. 1 cm in diam., 5- or 6-seeded. Fl. May--Jun, fr. Aug--Sep. 2 n = 20*, (22, 30, 31).

Forests, grassy slopes; 800--2200 m. Hebei, Heilongjiang, Jilin, Liaoning, ?Nei Mongol, Shanxi [Japan, Korea, Mongolia, Russia (Far East, Siberia)].