Populus deltoidesBartr. ex Marsh. ssp. deltoides36 of 41 eastern cottonwood, necklace poplar
September 22,Mt. Holyoke Range State Park, South Hadley
Leaves are deltoid-ovate, subcordate to truncate at base, coarsely crenate at margin (teeth curving in), becoming entire at base and apex, as wide as long or even wider.