I am gallantly trying NOT to say that this might be a Viburnum that I can't identify...
The terminal stubs shown just don't seem to match with Viburnum, despite the opposite foliage with serrated margins that do fit with the Viburnum dentatum and friends group - which would include Viburnum recognitum.
IF this were a Viburnum, it should have more branching to the remainder pedicel (or whatever the right botanical term is) from the flowering structure - cyme? The images seem to indicate something else.
Need...more...information...
