Non-native Trees

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These plants are incompatible with Portola Valley indigenous plant materials and will crowd them out.  Do not plant them.

   
 Acacis baileyana              
 
 Bailey Acacia                          
 Bailey Acacia
 Acacis decurrens     
 Green Wattle
 Green Wattle, photo by Australian Plants Society
 Acacis melanoxylon
 Blackwood Acacia
 Blackwood, photo by Green Corps, Yarra Range
 Cedrus deodara
 Deodar Cedar
 Cedrus Deodara, photo from Point Loma Univ., San Diego
 Cedrus atlantica
 Atlas Cedar
 Cedrus Atlantica, photo by Arbor Glenn Nurseries
 

 Eucalyptus globulus



 Blue Gum (Eucalyptus)
Eucalyptus Globules, photo by Wild Seed Tasmania


 Eucalyptus globulus "compacta"

 Dwarf Blue Gum (Eucalyptus)         
Eucalyptus Globules Compacta, photo by Sunny Gardens



 Pinus radiata


 Monterey Pine
Pinus radiata, photo by The Rampant Gardner, UK



 Populus alba


 White Poplar
Populus alba, photo by A. Fabiao

 Ailanthus altissimo  Tree of Heaven Tree of Heaven photo by invasive.org

 Phoenix canariensis  Canary Palm* Canary Palm photo by Crawford Nursery

 Phoenix dactylifera  Date Palm* Date Palm photo by wahyuinqatar.wordpress.com

 Olea europea  Olive (Fertile or Infertile) Olive Tree photo by ecotourismcypress.com

 Schinus molle  Pepper Tree Pepper Tree photo by zoopy.com

 Washingtonia robusta  Mexican Fan Palm* Mexican Fan Palm photo by maxpages.com


*  These are perhaps the most threatening of all.  Use every effort to halt the spread of these trees.


Photo credits are located here.