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

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