- Hemerocallis, genus Hemerocallis - east Asian rhizomatous clump-forming perennial herbs having flowers on long leafless stalks; cosmopolitan in cultivation: day lilies; sometimes placed in subfamily Hemerocallidaceae
--1 is a kind of liliid monocot genus
--1 is a member of Liliaceae, family Liliaceae, lily family
--1 has members:day lily, daylily; lemon lily, Hemerocallis lilio-asphodelus, Hemerocallis flava