the genus comprising the day lilies.
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How to use Hemerocallis in a sentence
This day lily (Hemerocallis fulva) is sister to the familiar and showy lemon lily of old gardens (Hemerocallis flava).The Garden, You, and I | Mabel Osgood Wright
Another very poor combination that is in my garden, much to my sorrow, is Hemerocallis and siberica iris.
Day Lily is a name applied also to species of Hemerocallis, which are yellow-flowered lilies.The Practical Garden-Book | C. E. Hunn
Hemerocallis fulva and flava, interchanging by bud-variation, i. 386.
British Dictionary definitions for hemerocallis
See day lily
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012