Western Invasives Network

The Emerald Chapter Native Plant Society of Oregon recently revised and released their 2002 list of invasive plants in southern Willamette Valley. You can view the list at http://www.emeraldnpso.org (Click on Invasive Plants). 

Many of the species on the list are new invaders and would require rapid response if detected, so please look out for and report any new infestations of these plants. You can view current distribution maps on www.weedmapper.org or the Oregon Plant Atlas  http://oregonflora.org/atlas.php  to find out their known distribution and if they should be reported in your area.

Ecologist and Botanist Bruce Newhouse (Salix Associates) headed up the effort, which involved careful review from many invasive plant experts in the region. Here is what Bruce had to say: 

“The Emerald Chapter of the Native Plant Society of Oregon recently revised the 2002 Invasives list, and now has posted a new list on their web site:  http://www.emeraldnpso.org (click on Invasive Plants).

This update was accomplished with the input of a wide variety of botanists, nursery owners and land managers familiar with vegetation in the southern Willamette Valley.  Note that the list is ecologically-based, identifying invasive, exotic plants which pose threats to wildland areas.  (It is not a list of garden or agricultural weeds.)”