Buttercup, Meadow buttercup, Ranunculus acris, Single yellow flower growing outdoor amid green foliage.

Primrose, Candelabraprimula, Primula bulleyana, Peach coloured flowers growing outdoor.

Water lily, White water lily,Nymphaea alba, Single flower growing outdoor on water.

Water lily, White water lily,Nymphaea alba, Single flower growing outdoor on water.

Water lily, White water lily,Nymphaea alba, Single flower growing outdoor on water.

Campion, Red campion, Silene dioica, Pink coloured flowers growing outdoor.

Iris, Yellow flower seen through green foliage growing outdoor.

Hydrangea, Mauve coloured flowerhead growing outdoor.

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.

Carrot, Wild carrot, Daucus carota, Pink coloured flowerhead growing outdoor.

Orchid, Lady's slipper orchid, Cypripedium 'Parville', Yellow coloured flower growing outdoor.

Bamboo, Yellow-groove bamboo, Phyllostachys aureosulcata, side view showing stem details.

Blackthorn or Sloe, Prunus spinosa, blossom on bare wood twigs against a blue sky.

Blackthorn or Sloe, Prunus spinosa, blossom on bare wood twigs against a blue sky.

Cherry, Prunus, showing the difference between the defoliated tree above the trail and the healthy one below and the pollution from the aircraft flying over London?s East End.

Abstract.

Wildlife wall built by RSPB, Hampton Court Show 2009 to demonstrate shelter and habitat for wildlife such as insects, hedgehogs and small mammals.

Chrysanthemum.

Cypress, Cupressus arizonica.

Cactus, Echinocereus.

Iris, Stinking iris, Iris foetidissima.

Cactus, Echinopsis.

Cactus.