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The City of Portland, Oregon

Portland Trees

Call before you cut

phone: (503) 823-TREE (8733)


1900 SW 4th Avenue, Portland, OR 97201

More Tree Species References

Online Database References

Tree identification

  • University of Connecticut College of Agriculture, Health and Natural Resources

  •  Tree Virginia Tech Dendrology Factsheets, Department of Forest Resources and Environmental Conservation

General information on individual species

  • The Gymnosperm Database - edited by Christopher J Earle

  • Urban Forests Ecostystem Institute at California Polytechnic Institute

  • USDA Forest Service Index of Tree Species Information


  • Global Invasive Species Database online (posted as of June 26, 2009)

Lifespan of trees

  • Average and Maximum Lifespan of Virginia Trees, Department of Forest Resources and Environmental Conservation, Virginia Tech

Tallest and oldest trees

  • Monumental Trees website: The thickest, tallest and oldest trees worldwide

Print References

General references

  • Manual of Woody Landscape Plants - Michael A. Dirr (Stipes Publishing, fifth edition - 1998)
  • Native Trees for North American Landscapes: From the Atlantic to the Rockies – Guy Sternberg (2004)
  • New Trees:  Recent introductions to cultivation by John Grimshaw and Ross Bayton (Kew Publishing 2009) 
  • North American Landscape Trees –- Arthur Lee Jacobson (First edition 1996)
  • Northwest Trees –– Stephen F. Arno and Ramona P. Hammerly (The Mountaineers Books – revised edition 2007)
  • Silvics of North America by Russell M. Burns and Barabara Honkala (USDA Forest Service 1990)
  • The Book of Leaves by Allen J Coombes edited by Zsolt Debreczy (2010 The University of Chicago Press 2003)
  • The World Encyclopedia of Trees by Tony Russell and Catherine Cutler (Anness Publishing)
  • Trees for All Seasons – Sean Hogan (Timber Press, 2008)
  • Trees of Seattle (second edition) by Arthur Lee Jacobson (2006)
  • Trees of the California Landscape by Charles R. Hatch (University of California Press 2007)
  • Uncommon Fruits For Every Garden – Lee Reich (Timber Press 2004)

Genus-specific references

  • An Illustrated Guide to Maples– Antoine le Hardy de Beaulieu (Timber Press 2003)
  • Magnolias: A Gardener’s Guide by Jim Gardiner (Timber Press Revised Edition 1989)
  • Oaks of California – Bruce Pavlik, Pamela Muick, Sharon G. Johnson, Marjorie Popper (Cachuma Press fifth printing 2002)


  • A Natural History of Conifers – Aljos Farjon – (Timber Press 2008) Western Trees (Peterson Field Guides – 1998) – George and Olivia Petrides
  • Conifers of California – Ronald M Lanner (Cachuma Press 1999)
  • Conifers of the World:  The Complete Reference – James E. Eckenwalder (Timber Press 2009)