This plant can become up to too feet tall.
It grows in a shaded spot/ sandy soil
Here are a couple of photos:
Do you have a side view with leaf axils?
Yes, Sorry, it seems I double posted the photo. Here are a couple of more photos:
I don't know your location, but it could be Eurybia divaricata, White Wood Aster.
Here is a link that might be useful: Eurybia divaricata
That's exactly what it is. I live in Montreal, Quebec and I recognize the flowers.
Thank you so much :)