Prairie gentian, Eustoma grandiflorium, Studio shot of mauve flower.

Prairie gentian, Eustoma grandiflorum, Close up of white flowers showing stamen.

Ryegrass, Italian Ryegrass, Lolium multiflorum, Grass seedhead close up showing anthers.

Forget-me-not, Myosotis arvensis, Single blue flower against a dark red background.

Oilseed rape, Brassica napus oleifera, A field of yellow flowering oil seed rape.

Oilseed rape, Brassica napus oleifera, Single stem of yellow flowering oil seed rape gainst a blurred background of the yellow field.

Sunflower 'Italian White', Helianthus annuus 'Italian White', Two yellow flowers growing outdoor.

Sunflower, Common sunflower, Helianthus annuus, Close up detail of yellow coloured flower growing outdoor.

Carnation 'Golem', Dianthus caryophyllus 'Golem', Studio shot of single pink open flower.

Poppy, Papaver rhooeas, Poppy field, Bright colours of mixed wildflowers sown as a border create a striking effect.

Viola Viola Viola cornata Deltini series Violas, Viola Dentini, Pansy, close up of two flowers covered in rain drops

Sunflower, Helianthus, Honey bee, Apis Mellifera, pollinating a flower.

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', red flowers amongst others that have finished flowering.

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.

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

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

Opium poppy, Papaver somniferum 'Danish Flag', red and white coloured flower showing fringed petals and stamens.

Gerbera jamesonii, black and white flower viewed from underneath against a solid black background.