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hemerocallis Syllabification: hem·er·o·cal·lis
Pronunciation: /ˌhemərōˈkaləs/

Definition of hemerocallis in English:

noun (plural same)

A plant of a genus that comprises the daylilies.
  • Genus Hemerocallis, family Liliaceae
Example sentences
  • In summer, traditional perennials take over, and peonies, irises and hemerocallis fill the flowery brook.
  • Perennials such as iris or hemerocallis will show a noted decrease in blooms over the years if they are not divided.
  • Geraniums, phloxes, eupatoriums and hemerocallis are split less often - perhaps every three to four years.


Modern Latin, from Greek hēmerokallis 'a lily that flowers for a day', from hēmera 'day' + kallos 'beauty'.

Definition of hemerocallis in:

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