Cinnamon, Cinnamomum verum.

Cinnamon, Cinnamomum verum.

Cinnamon, Cinnamomum verum.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, black and white against a solid black background.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, pink flower against a pink background.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, orange flower against a solid black background.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, black and white against a solid black background.

Shirley poppy, Papaver rhoeas Shirley series, black and white side view showing stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Opium poppy, Papaver somniferum, close up showing the stamens and stigma.

Love-in-a-mist, Nigella damascena, close up showing stamens against a blue background.

Poppy, Papaver commutatum 'Ladybird', red flowers amongst others that have finished flowering.