Clematis, Clematis Montana Wilsonii, A single open white flower with pink tinging.

Clematis, Clematis Montana Wilsonii, A open white flower with pink tinging showing filaments and stamen.

Clematis, Clematis montana 'Wilsonii', Single mauve coloured flower gropwing outdoor.

Clematis, Single open flower showing the pink petals and central hub of stamens.

Clematis, Single open flower showing the pink petals and central hub of stamens.

Clematis, Clematis 'Westerplatte', Clematis viticella 'Westerplatte'. Close up of purple coloured flowers growing outdoor.

Clematis, Clematis Montana Wilsonii, Studio shot of single pink flower showing stamen.

Clematis, Clematis Montana Wilsonii, Studio shot of single pink flower showing stamen.

Clematis, Clematis Montana Wilsonii, Studio shot of single pink flower showing stamen.

Clematis, Studio shot of single purple flower with yellow stamen.

Clematis, Studio shot of single transparent pink flower viewed from behind.

Clematis, Studio shot of single transparent mauve flower showing stamen.