Oxalis.

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

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

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

Iris, Yellow flower seen through green foliage growing outdoor.

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

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

Broom, Cytisus, Close up detail of pink coloured flower growing outdoor.

Broom, Cytisus, Close up detail of pink coloured flower growing outdoor.

Iris, Siberian Flag, Iris sibirica, Studio shot of open pale blue flower head on an upright stem.

Iris, Siberian Flag, Iris sibirica, Studio shot of open pale blue flower head on an upright stem.

Hellebore, Helleborus, Studio shot of pink flower head on stem.

Hellebore, Helleborus, Studio shot of black flower head on stem.