Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Love-in-a-mist, Nigella damascena, close up showing stamens against a blue background.

Poppy, Papaver commutatum 'Ladybird', black and white flower against a black background.

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

Poppy, Papaver commutatum 'Ladybird', black and white flower against a black background.

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.