Need help ID’ing a plant

I received the following message from the Olean Hiking Club and I was sure some of our experts could identify this plant.  Leave a comment here and I will forward it to the Olean Club.  The Olean Club uses a Google Group to communicate if you may want to join them.

Maybe Susan can help, or anyone else that might know. These plants were growing at the start of the trail at Wolf Creek Narrows on Saturday. I guessed that they might be some sort of (wild) lettuce. But I can’t find it in my Newcomb’s guide, nor any others I looked in so far. Notice the “wings” growing along the leaf petiole between the leaf and the base.
– Lee Ann