Purple morning glory, Ipomoea purpurea 'Feringa', One flower from side view, showing the purple blue trumpet with mauve throat.

Isotoma, Isotoma axillaris, One long tubular flower just opening to reveal dark stamen, Petals are white on the outside and violet blue on the front upperside.

Rose, Dog rose, Rosa canina, Overhead macro view of a mass of yellow stamen in the centre of a white wild rose.

Clematis, Clematis 'Ville de Lyon', Front view of a few purple flowers fully open showing the protruding stamen.

Clematis, Clematis 'Tie dye', a bud with purple flower with a distinctive white splash running through each petal.

Clematis, Clematis 'Marmori', Large, pale pink to lilac-pink flowers, darker pink at the base of the petals, and prominent maroon stamens dusted with pollen.

Clematis, Clematis 'Margaret Hunt', Close side view of a single lavender mauve flower with prominent maroon stamen.

Clematis, Clematis 'Margaret Hunt', Close side view of a single lavender mauve flower with prominent maroon stamen.

Clematis, Clematis 'Margaret Hunt', Close side view of a single lavender mauve flower with prominent maroon stamen.

Clematis, Clematis 'Marmori', Close up shwoing the swirly seedheads.

Clematis, Clematis 'Arabella',Two blue buds backlit in sunshine.

Clematis, Clematis 'Hagley hybrid', Close view of the pastel mauve flower showing the many stamen.