Nick Upton / Sycamore tree (Acer pseudoplatanus) flowers, Wiltshire, UK, May.

Staffan Widstrand / Wild Wonders of China / Palmate or Japanese maple (Acer palmatum) Tangjiahe National Nature Reserve, Sichuan, China

Andy Sands / Field maple (Acer campestre) ancient pollarded tree, London, England, Uk, November

Andy Sands / Field maple (Acer campestre) ancient pollarded tree showing hollow trunck (bolling) London, England, Uk, November

Jack Dykinga / Big leaf maple (Acer macrophyllum) draped in moss and surrounded by lush forest understory of sword ferns (Polystichum munitum) Prairie Creek Redwoods State and National Park, California.

Staffan Widstrand / Wild Wonders of China / Leaf in yellow from a Japanese maple (Acer palmatum) Tangjiahe National Nature Reserve, Qingchuan County, Sichuan province, China

Oliver Hellowell / Maple leaves (Acer sp) in autumn, Westonbirt, England, UK.

Oliver Hellowell / Maple leaf (Acer sp) which is ragged in autumn, Tennessee, November.

Andres M. Dominguez / Goldcrest (Regulus regulus) perched on maple, Ordesa y Monte Perdido National Park, Huesca, Spain, October.

Matthew Maran / Sycamore (Acer pseudoplatanus) veteran tree, Devon, UK, July.

Yva Momatiuk & John Eastcott / Maple (Acer sp) tree on lake shore within conifer forest in autumn, Kabetogama Lake, Voyageurs National Park, Minnesota

Cyril Ruoso / Maple (Acer sp) leaf hanging in the air on a Spider (Araneae) web strand, Picardy, France, October.