Species in the genus Polygonatum:

Polygonatum macranthum / Oonarukoyuri オオナルコユリ

Polygonatum macranthum is a perennial herb of approximately 1m in height, inhabiting forests in mountainous regions. 60-140cm long cylindrical stems with no ridges curve like a bow at the upper half. Leaves are of two-row alternate phyllotaxis,15-17cm long, in the shape of a lanceolate to long-oblong, with entire margins and short petioles. Flowers droop downward; single at upper parts and 2-4 in corymbs at lower positions. The flowers are white, 2.5-3.8cm long, funnel-bell-shaped, with green tips, and the corolla's segments warp. Sap fruit is 0.8-1.2cm in diameter and spherical. Bloom time: Bloom time: May-July.