Thomas Lazar / Looking up the trunk of Giant Sequoia tree(Sequoiadendron giganteum) Western Slope Sierra Nevada Mnts, Kings Canyon National Park, California, USA

Floris van Breugel / Trunks of Californian Redwood trees (Sequoia sempervirens) and blooming Rhododendron, Redwood National Park, Califorina, USA, June 2008.

Michael Hutchinson / Coastal Giant Redwood tree {Sequoia sempervirens} which has sprouted a second trunk, ~Redwood NP, California, USA

Thomas Lazar / Trunks of Giant Sequoia trees (Sequoiadendron giganteum) with smaller trees behind, Western Slope Sierra Nevada Mnts, Sequoia National Park, California, USA

Kirkendall-Spring / Juniper tree (Juniperus) at Buena Vista Overlook in the Malheur National Wildlife Refuge, Oregon, USA, May 2013.

Matthew Maran / Trunk of Western 'Grandma' Red Cedar tree {Thuja plicata} over 800 years old, The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island, BC, Canada

Wild Wonders of Europe / della Ferrera / Mediterranean cypress (Cupressus sempervirens) on the edge of Ocua jezero, one of the Bacinska Jezera (Lakes of Bacina) Dalmatia region, Croatia, May 2009

Duncan Mcewan / Lodgepole pine tree {Pinus contorta} young shoot, May, Inverness-shire, Scotland

GEORGETTE DOUWMA / Palm fruit on tree {Pandanus sp} Sabah Malaysia Indonesia

David Welling / Bristlecone pine cones & new growth - ancient trees {Pinus aristata} White Mountains, USA

Brian Lightfoot / Scots pine tree cone {Pinus sylvestris} cones. Scotland.

Adrian Davies / Bristlecone pine tree {Pinus aristata} Close-up of 'bristly' immature cone, Inyo county, California, USA.