Knowledgebase

Can you identify this weed? #790358

Asked May 11, 2022, 9:33 PM EDT

I found this growing along my fence in Springfield, Oregon, May 11, 2022. It is about 2 1/2 feet tall, thick, hollow reddish hexagonal stalk, yellow flowers at the top, not yet open. Toothed leaves. Thank you!

Lane County Oregon

Expert Response

Excellent photos! 

This is Lactuca serriola- Prickly Lettuce. It is an introduced annual, though it can be biennial here, in the daisy family. A very common weed with milky sap.
Patricia Patterson Replied May 20, 2022, 5:35 PM EDT

Loading ...