Rosa multiflora syn. Rosa polyantha

Help me identify this plant. Seen in the woods by the creek at the park near us in Pittsburgh, Pa.

This is a variety of wild or woodland rose. Multi flowered on many stems, more like what most consider a country rose, or rambling rose.

Thanks. I didn’t think it looked anything like a rose lol but I have a lot to learn. I’d love this in my own yard some day