Tulip, Tulipa 'Rigas Barikades', Tulipa 'Rigas Barikades', Detail of orange coloured flowers growing outdoor.

Palm, Bottle palm, Hyophorbe lagenicaulis, Close up detail showing grey colour.

Sea Lavender, Limonium sinuatum, Close up detail of small mauve coloured flowers growing outdoor.-

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

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

Pelargonium, Close up detail of red coloured flower growing outdoor.-

Fennel, Foeniculum vulgare, Close up detail showing network pattern.-

Dandelion Clock, Taraxacum officinale, Close up detail against blue background.-

Dahlia, Dahlia Con Amore, CLose up detail of red flower showing pattern.-

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.-

Ireland, County Monaghan, Tullyard, Trees on crest of hill covered in hoar frost on outskirts of Monaghan town, part framed by branches in foreground.

Ireland, County Sligo, Markree Castle Hotel, Trees covered in hoar frost.

Ireland, County Sligo, Markree Castle Hotel, Trees covered in hoar frost.

Ireland, County Monaghan, Rossmore Forest Park, Winter sun rays shining through part silhouetted conifer trees.

USA, California, Joshua Tree National Park, Joshua trees, Yucca brevifolia, in barren landscape with dramatic cloud formations in blue sky above.

USA, California, Joshua Tree National Park, Joshua trees, Yucca brevifolia, in barren landscape with dramatic cloud formations in blue sky above.

USA, California, Joshua Tree National Park, Joshua trees, Yucca brevifolia in barren landscape with domed rock formation behind.

West Indies, Windward Islands, Grenada, Callaloo crop growing beside banana trees in the countryside of St John parish

West Indies, Windward Islands, Grenada, Callaloo crop growing beside banana trees in the countryside of St John parish

Abstract.

Tree.