Rhizome terete, ca. 3 mm thick, slender. Stem erect, 20--30 cm. Leaves alternate, elliptic to ovate, 6--8 cm, prominently 3--5-veined, apex acute to shortly acuminate. Inflorescences (1 or)2-flowered; peduncle glabrous; bracts (1 or)2, borne near apex of pedicel, lanceolate to oblong-lanceolate, to 2 × 0.3--0.6 cm, herbaceous, persistent. Flowers pendulous; pedicel glabrous. Perianth white, cylindric, ca. 2.3 cm. Filaments ± compressed, smooth. 2 n = 18.

Further research is needed to determine whether or not Polygonatum mediobracteatum Ohwi (J. Jap. Bot. 13: 443. 1937) should be included within P. desoulavyi.

Forests; ca. 600 m. Heilongjiang [Korea, Russia (Far East)].