Polygonatum formosanum (Hayata) Masamune & Shimada; P. officinale Allioni var. formosanum Hayata.

Rhizome moniliform, 0.8--2.5 cm thick. Stem arching, 1--2 m, glabrous. Leaves 12--23, alternate; petiole 2--5 mm; leaf blade ± glaucous abaxially, lanceolate to narrowly oblong, 8--20 × 2--4.5 cm, glabrous, base obtuse, apex acute to acuminate. Inflorescences ± umbel-like, 2--4-flowered; peduncle 1--2 cm; bracts absent. Flowers pendulous; pedicel 0.5--1.5 cm. Perianth yellowish white, campanulate-cylindric, 2--2.8 cm; lobes 5--6 × 3.5--5 mm. Filaments 5--10 mm, basally thickened, occasionally compressed, smooth to slightly verruculose, apically filiform, smooth; anthers 2--5 mm. Ovary 4--5.5 mm. Style 1--1.5 cm. Berries ca. 8 mm in diam., several seeded. Fl. May. 2 n = 22*, (44*).

* Forests; 600--2100 m. Taiwan.