Kerria, Kerria japaonica 'Pleniflora', Yellow coloured flower growing outdoor.

Kerria, Kerria japaonica 'Pleniflora', Yellow coloured flower growing outdoor.

Kerria, Kerria japaonica 'Pleniflora', Yellow coloured flower growing outdoor.

Birch tree, Betula cultivar, Yellow flowers growing outdoor.

Birch tree, Betula cultivar, Yellow flowers growing outdoor.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor with butterfly.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor with butterfly.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor.

Sunflower 'The Bees Knees', Helianthus annuus 'The Bees Knees', Yellow flower growing outdoor.

Poppy, Californian poppy, Eschsclolzia califonica, Open yellow flower head showing stigma, filaments and stamen.

Begonia, Hanging open white flower head with a touch of yellow in the centre.

Red hot poker, Kniphofia, Two red and yellow coloured flowers growing outdoor.

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.

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

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.

Iceland poppy, Papaver nudicaule, front view showing stigma and 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.