Winter windflower, Anemone blanda, curved back purple petals reveal yellow stamens against a dappled blue background.

Allium, Allium christophii, black and white opening flower appearing light against a solid black background.

Oriental poppy, Papaver orientale 'Patty's Plum', close up showing black stamen inside.

Iris, Bearded iris, detail showing yellow and black markings on a blue flower.

Oriental lily, Lilium 'Hotline', several pink edged flowers.

California poppy, Eschscholzia californica 'Carmine King', overhead view of pink flower showing yellow stamen with leaf in soft focus behind.

Black-eyed Susan, Rudbeckia hirta 'Moreno', orange tinged mahogony flower showing ring of yellow stamens around the black cone.

Alstroemeria 'Perfect blue', flowers against soft focus background.

Trifolium, Clover, Nobel clover, Trifolium rubens.

Burnet, Sanguisorba 'White Tanna', which flowers from the bottom upwards.

Wood sage, Salvia x sylvestris 'Blauhugel'.

Bulley's Primrose, Primula bulleyana, yellow candleabra primula, which is a wild woodland plant.