Land Plants - invasive

Poison Hemlock (Conium maculatum) on Jun 7, 2024

Submitter has sample

Description of specimen

The wetlands area behind my house has not only poison hemlock it also has Ivy, arum. These are spreading rapidly, the IV is going up the trees, and the poison hemlock is also spreading rapidly


Each of these species are unfortunately common throughout the county. Poison hemlock is very toxic so must be handled with care. The arum is toxic as well.

Here’s some information on each of the three species.

Keith Nasman
Invasive Species Technician
Tualatin Soil & Water Conservation District

Keith Nasman
June 10, 2024, 2:21 a.m.