This looks like it could be goldenrod (Solidago). There are several native types. Weed? Depends on the person- it does bloom yellow in the fall, wildlife and especially pollinators love it. It should have alternate leaf arrangement, and it grows in clumps which run with shallow rhizomes. It can take over, but is easy to pull.
Thanks, I have a solidago variety that has darker green leaf with a jagged edge and propagates in clumps, whereas this one has smoother leaf and looks like it is a seed propagator because of the randomness of growth. I will let a couple of these grow to flower and see if it's a 'weed' I can live with!
Thanks for your response.