Wildflower

A wildflower is a flower that grows in the wild, rather than being intentionally seeded or planted. The term implies that the plant is neither a hybrid nor a selected cultivar that is any different from the native plant, even if it is growing where it would not naturally be found. The term can refer to the whole plant, even when not in bloom, and not just the flower.
"Wildflower" is an imprecise term. More exact terms include:

native species naturally occurring in the area
exotic or introduced species not native to the area, including
* invasive species that out-compete other plants, whether native or not
* imported
* naturalized

In the United Kingdom, the organization Plantlife International instituted the "County Flowers scheme" in 2002; see County flowers of [the United Kingdom] for which members of the public nominated and voted for a wildflower emblem for their county. The aim was to spread awareness of the heritage of native species and about the need for conservation, as some of these species are endangered. For example, Somerset has adopted the cheddar pink, London the rosebay willowherb and Denbighshire/Sir Ddinbych in Wales the rare limestone woundwort.

Examples

Adonis aestivalis, summer pheasant's-eyeAnagallis, pimpernelAgrostemma githago, common corn-cockleAnthemis arvensis, corn chamomileCallirhoe involucrata, purple poppy-mallowCentaurea cyanus, cornflowerCoreopsis tinctoria, plains coreopsisDianthus barbatus, sweet WilliamDigitalis purpurea, foxgloveDimorphotheca sinuata, glandular Cape marigoldEschscholzia californica, California poppyFicaria verna, lesser celandineGlebionis segetum, corn marigoldGypsophila elegans, annual baby's-breath

Lantana spp., shrub verbenasPapaver rhoeas, common poppyPetasites hybridus, butterburPhlox drummondii, annual phloxPotentilla sterilis, strawberryleaf cinquefoilPrunus padus, bird cherrySilene latifolia, white campionTussilago farfara, coltsfootViola riviniana, common dog-violetViola tricolor, wild pansy