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.

Yarrow, Achillea filipendulina 'Gold Plate', multiple stems backlit against a clear blue sky.

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

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

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

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

Dahlia, red flower shot against similar colour backgound.

Dahlia, red flower shot against similar colour backgound.

Dahlia, red flower shot against similar colour backgound.

Cosmos bipinnatus, shot from side revealing pollen coverd yellow stamens.