Willow, Weeping Willow, Salix babylonica, Looking up through pattern of branches on the tree.-

Willow, Weeping Willow, Salix babylonica, Looking up through pattern of branches on the tree.-

Azalea, Azalea Japonica Madame Van Hecke, Pink flowers growing outdoor.-

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.-

Hellebore, Helleborus, Detail of mauve coloured flowers growing outdoor.-

Euphorbia polyacantha, Mass of spiky plants growing outdoor.-

Euphorbia echinus, Detail showing the pattern of spiky needles.-

Euphorbia echinus, Mass of green spiky plants growing outdoor.-