A flowering plant (genus Hemerocallis) with clusters of trumpet-shaped flowers that each bloom for only one day.
From 'day' + 'lily,' from Greek 'hemera' (day) + 'kallos' (beauty). Native to Asia, cultivated worldwide since the 18th century.
Despite their name, daylilies aren't true lilies at all—they're actually closer to asparagus and onions, but someone named them beautifully anyway, and now everyone calls them lilies even botanists shrug and go along with it.
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