'Hemerocallis' definitions:

Definition of 'Hemerocallis'

From: WordNet
noun
East Asian rhizomatous clump-forming perennial herbs having flowers on long leafless stalks; cosmopolitan in cultivation: day lilies; sometimes placed in subfamily Hemerocallidaceae [syn: Hemerocallis, genus Hemerocallis]

Definition of 'Hemerocallis'

From: GCIDE
  • Hemerocallis \Hem`e*ro*cal"lis\, n. [NL., fr. Gr. ?; ? day + ka`llos beauty.] (Bot.) A genus of plants, some species of which are cultivated for their beautiful flowers; day lily. [1913 Webster]