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.

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.

Avens, Geum 'Tangerine dream', viewed from underneath showing the sepals and stamen.

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.

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.

Bonsai, Japanese yew, Taxus cuspidata.