Hemerocallis minor, also known as dwarf daylily, grassleaf lily and small daylily, is a species of flowering plant in the family Asphodelaceae, native to Siberia, Mongolia, China, and Korea. The plant grows up through 0.5 m high. Its wide yellow flowers are scentless. It is a hermaphroditic species, pollinated by insects such as honey bees. In China, the flowers are eaten as a traditional food. Despite their common name, daylilies are not true lilies (plants from the genus Lilium, family Liliaceae). Although the flowers of Hemerocallis and Lilium species have a similar shape, their growth habits, stems and leaf shapes are distinctive. Before 2009, the scientific classification of daylilies put them into the family Liliaceae. In 2009 daylilies were removed from the family Liliaceae and assigned to the family Xanthorrhoeaceae, subfamily Hemerocallidoideae. Xanthorrhoeaceae was renamed in 2017 to Asphodelaceae.
