Purple coneflower, Echinacea purpurea 'Magnus', Close view of central mound of green orange tipped stamens forming a concentric pattern.

Echinacea, Purple coneflower, Echinacea cultivar, Close up of flower head with orange coloured petals.

Marigold, Tagetes erecta planted closely with tomato, Lycopersicon esculentum in a wooden fruit crate,

Californian poppy, Eschscholzia californica, Front view of one fully open orange flower showing stamens, coming out of soft focus blue background.

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

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

Crocus, Crocus etruscus 'Zwanenburg', Close side view of an open blue mauve flower among others, showing the orange stigma and pollen covered stamens.

Camellia, Camellia x williamsii 'Bartley Pink', One deep pink flower opening to reveal orange stamens inside.

Nasturtium, Tropaeolum majus, A flowering stem with leaves and a backlit orange flower with red markings in a glass of water.

Rhubarb, Rheum rhabarbarum, A small plant in front of four terracotta forcing pots beside a crumbly brick wall.

Marigold, Calendula officinalis, Close side view of one yellow orange flower with raindrops.

Fox-and-cubs, Pilosella aurantiaca, A flowering stem of this orange wildflower.