Marigold, Calendula officinalis. Close front view of one open orange flower with leaves behind. Selective focus.

Columbine, Aquilegia vulgaris, Close view of pale pink sharp focus flower with others on the stem soft behind, Staffordshire, England.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma against a solid black background.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma.

Globeflower, Trollius chinensis, yellow flower showing stamens and stigma, against a solid black background.

Globeflower, Trollius chinensis, black and white flower showing stamens and stigma, against a solid black background.

Shirley poppy, Papaver rhoeas Shirley series. pink flower showing stamens and stigma.

Double shirley poppy, Papaver rhoeas, a black and white shot against a black background.

Shirley poppy, Papaver rhoeas Shirley series, pink flower showing stamens and stigma against a solid black background.