Looks like a helianthus, one of the sunflower family.

FataMorgana

Here is a link that might be useful: USDA Plants Profile - Helianthus

Yes, I agree it is probably a sunflower - helianthus species. These are easy to grow, but they need some space. They can be readily transplanted by pulling up a few stems, which will come out of the ground with some roots and stolons. Cut the stems down to about a foot tall and only a couple of leaves, and plant in almost any soil. Water them this fall, and you should have a nice plant by next summer. Any wild clump can afford to give up a few stems, since they spread pretty aggressively.

I can't say for sure but it might be helianthus divaricatus or woodland sunflower.