Lawn Weed ID Needed

Asked May 20, 2019, 7:49 PM EDT

I've got this weed taking over my backyard...can someone help me identify it so that I can research how best to control it. I live in the Portland, OR metro area. Thanks!

Multnomah County Oregon lawns and turf weeds

1 Response

Here are a few importand resources that I have located that can help you now and possibly in the future. There is also a Master Gardener Hotline available daily
and here is the contact information for Multnomah County that may also be of assistance should this information be insufficient:
503-445-4608 also online at

Oregon Invasive Species Council: 100 most dangerous invaders to avoid

Portland’s Invasive Plants (a poster) unique to our area. and an informative article from
OSU Extension

Should you want to consider the relative safety of the various herbicides available here is a very useful website that enables you to serach for the least toxic products and their pros and cons.