Solomon's Seal

Polygonatum involucratum Asparagaceae

Growth habit

Herbaceous

Perennation

Perennial

Native distribution

Russia, China, Japan, Korea

Location

Groundcover Collection

Source of plant

Arrowhead Alpines

Description

Rhizome terete, 3--5 mm thick, slender. Stem arching, 20--50 cm, glabrous. Leaves 4--7, alternate; petiole short or indistinct; leaf blade broadly elliptic to ovate, usually 5--10 × 3--6 cm, glabrous, base rounded or tapering, apex acute to shortly acuminate. Inflorescences 2-flowered; peduncle 1--2 cm, glabrous; bracts 2, borne at base of pedicel, ovate to broadly ovate-elliptic, 2--3.5 × 1--3 cm, leaflike, 7- or more veined, persistent. Flowers pendulous; pedicel 1--2 mm, glabrous. Perianth greenish white, cylindric, 2.3--2.5 cm; lobes ca. 3 × 2 mm. Filaments ± compressed, 2--4 mm, papillose; anthers 3--5 mm. Ovary ca. 5 mm. Style 1.8--2 cm, slightly exserted. Berries ca. 1 cm in diam., 7- or 8-seeded. Fl. May--Jun, fr. Aug--Sep. 2 n = 18*, (20, 22).Forests, shaded and moist slopes; 700--1400 m. Hebei, Heilongjiang, Henan, Jilin, Liaoning, ?Nei Mongol, ?S Shaanxi (Qin Ling), Shanxi [Japan, Korea, Russia (Far East)].