Siberian iris, Iris sibirica 'Sparkling rose', purple flower against black background.

Poppy, Papaver commutatum 'Ladybird', black and white flower shot from behind.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against mauve background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against green background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against lilac background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against dappled background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against dappled background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against pale lilac coloured background.

Helen's flower, Sneezeweed, Helenium, viewed side on showing the domed central mass of stamens.

Helen's flower, Sneezeweed, Helenium, viewed side on showing the domed central mass of stamens.

Helen's flower, Sneezeweed, Helenium, viewed side on showing the domed central mass of stamens.

Helen's flower, Sneezeweed, Helenium, viewed side on showing the domed central mass of stamens.