The Lombardy poplar, a cultivar in the group, the P. nigra ‘Italica’. Click on image to enlarge. http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=274293

Maybe something in the Populus genus, its species i.e. cottonwood, aspen, etc… I’m not an expert of this genus and wondering if this could be a cultivar in the black poplar (P. nigra). Check out these included links for more information. Link for P. nigra images, click on images to enlarge. Best wishes! https://www.invasive.org/browse/subthumb.cfm?sub=11530&Start=1&display=60&sort=2