Dahlia, Side view of single orange coloured flower growing outdoor.

Dahlia, Close-up detail of orange coloured flower growing outdoor showing petal pattern.

Sneezeweed, Common sneezewed, Helenium 'Moerheim Beauty', Orange coloured flower growing outdoor with petals and stamen visible.

Dahlia, Close-up of heart of burnt orange flower showing pattern of petal.

Carrot, Daucus Carota, Three carrots in a village produce show.

Dahlia, Close-up of orange coloured flower showing pattern of petals.

Tulip, Tulipa, Orange coloured flowers growing outdoor showing petals.

Tulip, Tulipa, Orange coloured flowers growing outdoor showing petals.

Marigold, Calendula, Orange flower growing outdoor covered in water droplets.

Wild dagga, Lion's tail, Leonotis leonurus, Detail of plant with orange coloured flowers growing outdoor.

Wild dagga, Lion's tail, Leonotis leonurus, Detail of plant with orange coloured flowers growing outdoor.

Wild dagga, Lion's tail, Leonotis leonurus, Detail of plant with orange coloured flowers growing outdoor.

Dahlia, Cactus Dahlia, Close up studio shot of spiky red coloured flower.-

Dahlia, Cactus Dahlia, Close up studio shot of spiky red coloured flower.-

Cactus, Torch Cactus, Echinopsis spachiana, Close up detail showing the spiky pattern.-

Cactus, Torch Cactus, Echinopsis spachiana, Close up detail showing the spiky pattern.-

Prickly Pear Cactus, Opuntia cochenillifera, Close up of purple coloured fruit-

Cactus, Golden Barrel Cactus, Echinocactus grusonii, Mass of small spiky cacti.-

Cactus, Mexican Giant Cardon, Pachycereus pringlei, Details of spiky plant against blue sky.-

Cactus, Coastal Prickly Pear Cactus, Opuntia littoralis, Detail showing pattern of spiky needles.-

Cactus, Prickly Pear Cactus, Opuntia cochenillifera, Detail of spiky plant against blue sky.-

Cactus, Tunicata Cactus, Opuntia tunicata, Detail showing pattern of spiky needles.-

Cactus, Tunicata Cactus, Opuntia tunicata, Detail showing pattern of spiky needles.-

Cactus, Pincushion Cactus, Mammillaria bombycina, Aerial view of spiky plants.-