John Cancalosi / Pileated woodpecker (Dryocopus pileatus) feeding chicks at nest, Washington DC, USA, June.

Wild Wonders of Europe / Relanzón / Ice plant (Mesembryanthemum crystallinum) flower, North Lanzarote, Canary Islands, Spain, March 2009

Jack Dykinga / Senita Cactus (Lophocereus crystallinum) amid Sand Verbena (Abronia villosa) and flowering Ice Plants (Mesembryanthemum crystallinum), Vizcaino Desert, Baja California Sur, Mexico, Central America

Emanuele Biggi / Ice plant (Mesembrianthemum crystallinum) Swakopmund, Namibia

Adrian Davies / Succulent (Mesembryanthemum crystallinum) La Gomera, Canary Islands.

Nick Upton / Common / Crystalline Ice plant (Mesembryanthemum crystallinum) flowers close up, Tenerife, May.

Nick Upton / Common / Crystalline Ice plant (Mesembryanthemum crystallinum) flower close up, Tenerife, May.

Nick Upton / Common / Crystalline Ice plant (Mesembryanthemum crystallinum) flowering on coastal headland, Tenerife, May.

Nick Upton / Common / Crystalline Ice plant (Mesembryanthemum crystallinum) flowering on coastal headland, Tenerife, May.

Cyril Ruoso / Common Iceplant (Mesembryanthemum crystallinum) covered with large bladder cells, Ponta de Sao Lourenco Nature Reserve, Madeira

Cyril Ruoso / Common Iceplant (Mesembryanthemum crystallinum) covered with large bladder cells, Ponta de Sao Lourenco Nature Reserve, Madeira

Tony Phelps / Ice plant (Mesembryanthemum crystallinum) flowering, DeHoop Nature Reserve, Western Cape, South Africa, November

Bruno D'Amicis / Common Iceplant (Mesembryanthemum crystallinum) in flower. Island of Linosa, Sicily, Italy, July.

Martin Gabriel / Ice plant {Mesembryanthemum crystallinum} Canary Islands.

Jose B. Ruiz / Ice plant flower {Mesembryanthemum crystallinum} Alicante, Spain

Jose B. Ruiz / Ice plant {Mesembryanthemum crystallinum} Alicante, Spain

Jose B. Ruiz / Ice plant in flower {Mesembryanthemum crystallinum} Alicante, Spain