WordNet sense 1 (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):

staghorn sumac, Rhus typhina, velvet sumac, Virginian sumac

WordNet sense 2 (common nonpoisonous shrub of eastern North America with waxy compound leaves and green paniculate flowers followed by red berries):

smooth sumac, Rhus glabra, scarlet sumac