Winged Sumac, Rhus copallina.  Or Smooth Sumac, Rhus glabra,  depending on the twigs (one is smooth and the other has barky wings.)   They look very similar at 45 mph.

 

There are several Sumacs that grow here:  

 

Staghorn sumac with its velvety red flower spikes, easy to spot at 45 mph.  ;)

Smooth or Winged sumac (pictured) and 

Poison sumac which has white berries and causes a skin reaction much like Poison ivy.  

I've seen lots of Staghorn and Winged sumacs in our neighborhood, but no Poison sumac.  It may live here, I just haven't seen any.  

 

Sumac is a small tree or large shrub, some reaching 15 feet.  We have one that I can see from my living room, and we watch the birds all winter eating the seeds.  I don't think it would be a good idea to park your car under it, but it's great to see cardinals and bluebirds up close.  Deer also love grazing on the twigs.

 

Sumac is in its glory right now, leaves turning red, and bright red berries feeding lots of wildlife.  Be sure to notice them in your autumn travels.

 

HAPPY GARDENING!!