Hillbilly61, take a fresh leaf from the tree. Gently tear it in half, across the veins. If you see small, white, latex 'fibres' between both leaf halves, at the veins, it must be a dogwood species. The Cornus genus is pretty unique in this: latex 'fibres' (for lack of a better word) running from leaf half to leaf half through the veins. They are really small though: be gentle when you pull the two halves apart and watch closely.
Could be an other species of dogwood, not Cornus florida? One that does not flower, or has yet to form buds? Or could it be an early specimen, which has already come to bloom several weeks ago? Just thinking out loud here.