staghorn sumac

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An eastern North American deciduous shrub or small tree (Rhus typhina), having stout hairy branches, pinnately compound leaves, and clusters of hairy crimson fruit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun deciduous shrubby tree or eastern North America with compound leaves that turn brilliant red in fall and dense panicles of greenish yellow flowers followed by crimson acidic berries