The Orange daylily (Hemerocallis aurantiaca) belongs to Liliaceae (the Lily family). It is a perennial herb that is distributed to the Danjo Islands in western Nagasaki of Kyushu, Japan, and in Taiwan and Guangdong and Guangxi provinces in southern China. It grows in shrub belts and grasslands near the coast and is about 1 m high. The leaves are broad linear, fold in two, and root. From May to June, the flower stalks grow and bloom yellow-orange flowers. There are 6 perianths, which are fused at the base. It is also called "Wasure-gusa" or "Nanban-kanzo". In Taiwanese Mandarin, "橙萱".