Steve Nicholls / Looking up through the leaves of Wild sarsaparilla (Aralia nudicaulis) in woodland, Cape Cod, Massachusetts, USA, May

Nick Upton / Hoverfly (Myathropa florea), using proboscis to feed on pollen from anthers of Ivy flowers (Hedera helix). Wiltshire garden, UK, September

Konrad Wothe / Rainbow Lorikeet (Trichoglossus haematodus) trio in Umbrella Tree (Schefflera actinophylla), Atherton Tableland, Queensland, Australia

Colin Varndell / Ivy (Hedera helix) leaves with Star moss (Polytrichum) and Feather moss (Thuidium tamariscum) Kingcombe, Dorset, UK March 2010

Ross Hoddinott / Ivy leaves (Hedera sp) in snow and heavy frost, Bradworthy, Devon, UK. December 2010

Wild Wonders of Europe / Geslin / Ivy (Hedera sp) growing through metal grating in garden of Vatican City, Rome, Italy, March 2010

Mike Read / Eurasian treecreeper (Certhia familiaris) on Ivy (Hedera helix) growing on English / Pendunculate oak (Quercus robur) tree, Hampshire, England, March

Wild Wonders of Europe / della Ferrera / Pedunculate oak (Quercus robur) covered in thick stems of Common ivy (Hedera helix) Hutovo Blato Nature Park, Bosnia and Herzegovina, May 2009

Wild Wonders of Europe / Hermansen / White horse, The Burren region, County Clare, Republic of Ireland, June 2009

Tui De Roy / Royal Penguin (Eudyptes schlegeli) group walking to colony past Macquarie Island Cabbage (Stilbocarpa polaris) both endemic to Macquarie Island, Australia

Colin Varndell / Ivy (Hedera helix) buds. Dorset, UK, October 2010.

Alex Hyde / Ivy (Hedera helix) clump protruding through snow. Peak District National Park, Derbyshire, UK, January.