I'm not sure what this is. wood Rose was one suggeztion
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trees and shrubs
Hi. That looks like a panicle hydrangea (Hydrangea paniculata). They have opposite leaves, white flowers, and bloom this time of year in Ohio. Here are a couple short articles about the shrub from the U. of Delaware and the Missouri Botanical Garden.
Replied August 3, 2016, 8:13 AM EDT