Land Plants - invasive

Ivy, English or Atlantic (Hedera helix or Hedera hibernica) on May 12, 2008

Submitter does not have a specimen

Description of specimen

Tons of ivy climbing trees


Dear Dr. Michael Ossar,

Thank you for your report. Yes, unfortunately ivy is a widespread problem in Oregon and we are working to prevent it from spreading even further. Many volunteers in the Portland area are helping by removing ivy from special places like forest park. If you are interested, I would encourage you to contact your local Soil and Water Conservation District ( or, or The Nature Conservancy ( to find out more about actions people are taking (and possibly join forces) to reclaim our parks from the ivy and other invasive species..

Thanks again for your submission. Keep on reporting!


Tania Siemens
Invasive Species Research Assistant
Oregon State University Sea Grant Extension
cell: 541-914-0701

Tania Siemens
May 13, 2008, 12:28 a.m.