Western Poison Ivy, a native species, has been added to the USWildflowers database (08/11/2012.) Scientific name is Toxicodendron rydbergii. Photo below was taken in Adams County, ID on May 25, 2012. It is also known by the common name Northern Poison Ivy. Go to the Western Poison Ivy detail page for more photos and information.
When you click on the highlighted “western poison ivy detail page” the link takes you to: http://uswildflowers.com/detail.php?SName=Silphium%20trifoliatum
which isn’t the right place!
Thanks!
Thanks, Tara, that has been corrected… Sorry for the misdirection. 🙂