Hemerocallis middendorffii, known as Amur daylily,[2] is a plant species in the subfamily Hemerocallidoideae of the family Asphodelaceae of the order Asparagales.

It is native to the Russian Far East, northwest China, Korea, and Japan.

It grows in meadows, mountain slopes, open woods, and scrub.

Herbaceous perennial with linear arching leaves to 60 cm (24 in).

Flowers 5–6, golden yellow to clear orange, large in a terminal head.