Rhus aromatica, fragrant sumac Rhus aromatica Ait.
Leaves trifoliate, petiolate, fragrant when crushed.
Leaflets variable in size,shape, lobing, margins, and pubescence but usually shiny-glabrous above. Flowers small, yellow, appearing in the early Spring. The species is native to most of the United States east of the Rocky Mountains. Most abundant in open, rocky uplands, but is sometimes found in other habitats. Similar species in the Southwest are sometimes combined with it.