What kinds of shrubs are growing wild in the vicinity? Because unless it's a new arrival from some distance away it probably is another one of those.

Otherwise it is perhaps one of the red twigged dogwood species but there are a couple of things about it that make me not positive of that determination.

The leaves in whorls of three are throwing me.

Yes-a lot like the Button Bush I grow.

And that is another wetland shrub.

What is the location?

New York metro area