dayflower

[ dey-flou-er ]
/ ˈdeɪˌflaʊ ər /

noun

any plant of the genus Commelina, usually bearing clusters of small, blue flowers that bloom for only one day.

Origin of dayflower

First recorded in 1680–90; day + flower
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for dayflower

dayflower

/ (ˈdeɪˌflaʊə) /

noun

any of various tropical and subtropical plants of the genus Commelina, having jointed creeping stems, narrow pointed leaves, and blue or purplish flowers which wilt quickly: family Commelinaceae
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