wildflower

or wild flow·er

[ wahyld-flou-er ]
/ ˈwaɪldˌflaʊ ər /

noun

the flower of a plant that normally grows in fields, forests, etc., without deliberate cultivation.
the plant itself.

Origin of wildflower

First recorded in 1790–1800; wild + flower
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for wild flower

wild flower

noun

Also: wildflower any flowering plant that grows in an uncultivated state
the flower of such a plant

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