Hemerocallis middendorffii Trautv. & Mey.

Distribution : Japan (Hokkaido), Kuriles, Sakhalin, Amur, Ussuri, Korea, China (Heilongjiang, Jilin, Liaoning), Manshuria

Description in Reise Sibir. 1(2), Fl. Ochot. Phaenog., 94:321 (1856)