It shurely is a Datura stramonium. Used by some indians as a drug with special care, cause it is a deadly poison.
As a total stranger of USA trees I just give my idea. To me the pictures show an ordinary Q robur, which is the most common oak here in Holland.
This is Wontolla from Holland. I am an ex-biology teacher (67 now) and highly interested in plants of the world. When I am on holiday I always...
