sumac

Any bush or tree of the genus Rhus of the cashew family, having pinnate compound leaves and clusters of small reddish fruits. Staghorn sumac Rhus typhina, growing to 36 ft/11 m tall, is common in North America. Included too are several poisonous plants (sometimes referred to collectively as the genus Toxicodendron), such as poison ivy, poison sumac, and certain Japanese sumacs.