Zelkova serrata (Japanese Gray-Bark Elm), Keyaki or Japanese Zelkova is a species of Zelkova native to Japan. It is often grown as an ornamental tree, and used in bonsai.
The first cultivation outside of Asia was by Philipp Franz von Siebold, who introduced it to the Netherlands in 1830.
The tree is a symbol of a number of Japanese cities and prefectures: Miyagi Prefecture, Fukushima Prefecture, both hard-hit by Friday's quake. It is the strongest in recorded history to hit Japan (according to USGS records that date to 1900).
Tools used for this photo:
Camera: Pentax SLR K20D
Flash: AF-540FGZ and Linkstar LF-300A.
Lens: smc PENTAX-DA* 50-135mm F2.8, one of the finest Pentax SMC zoom Lenses.
Focal Length: 80 mm
ISO Speed: 100
Flash was triggered with the Phottix PT-04 TM Wireless Radio Trigger.
Converted from RAW (PEF) using Pentax Photo Lab.