Dawn Redwood.
Available from NWDA Community Store.
http://store.nwdanet.com/component/virtuemart/13-objects/14-trees/63-dawn-redwood.html
Marc
Image Content Credits:
choronr: Camp Site Terrain
Mr_Lamppost: Bush Pack
Walli:Catch the vetch
Marc's Trees: Dawn Redwood, Black Oak, Dead Pine and Generic Pine 02