Amaryllis, Hippeastrum 'Gervase', Close view a single bold, striped flower, with deep magenta petals and white highlights, Long curled stamen and stigma, Against a graduated grey background.

Amaryllis, Hippeastrum 'Gervase', Close view a single bold, striped flower, with deep magenta petals and white highlights, Long curled stamen and stigma, Against a graduated grey background.

Amaryllis, Hippeastrum 'Gervase', Close view a single striped flower, with deep magenta petals and white highlights, Long curled stamen and stigma, Against a graduated grey background.

Saguaro cactus, Carnegiea gigantea, Dramatic view from below of a single stem with arms branching upwards towards a blue sky with wispy clouds, its shadow on a white wall.

Plum, Prunus domestica 'Blue tit', Cluster of white blossom with small leaves on a single twig.

Plum, Prunus domestica 'Blue tit', Cluster of white blossom with small leaves on a single twig.

Icelandic poppy, Papaver nudicaule, Close-up detail of a single orange flower with yellow stamen against a green leafy background.

Rose mallow 'Blue Bird', Hibiscus syriacus 'Oiseau Bleu', A single purple blue flower with white stamens.

Summer hyacinth, Galtonia candicans, Pendulous white flowers with black tipped stamens.

Allium sphaerocephalon, A single purple spherical flower on a stem isolated in shallow focus against green leaves.

Field maple, Acer campestre, Single orange green colour spring leaf against white background.

Tulip, Tulipa 'Miranda', Close up of orange coloured flower.