You'll find this amazing, but the Roughleaf Dogwood has rough leaves. :-) Other than that, it looks similar to other species of dogwood, particularly Gray Dogwood. It's much taller than Gray Dogwood and has a sort of different look to it, but that's hard to describe. You just have to look at lots of them to tell.
It's hard to get a picture of a whole dogwood plant since they often grow in clumps and amidst a bunch of other vegetation. Pictures of the plant tend to look like pictures of every other plant.