Rhus glabra

From Gardening Wiki

Rhus glabra (Smooth Sumac) is a species of sumac in the family Anacardiaceae, native to North America, from southern Quebec west to southern British Columbia in Canada, and south to northern Florida and Arizona in the United States and Tamaulipas in northeastern Mexico.

One of the easiest shrubs to identify throughout the year, Smooth Sumac is a spreading, open-growing tall shrub, growing 10 to 12 ft. (up to 3 m tall) in height, with smooth bark. The bark on older wood is smooth and grey to brown.

Flowers are produced July at the end of branches and they are tiny, green, and produced in dense erect panicles 10-25 cm tall, followed by clusters of dark crimson berries which remain throughout winter. Bright colored foliage; very attractive in autumn. One of the best for massing in the border. The buds are small, covered with brown hair and borne on fat, hairless twigs.

The leaves are alternate, 30-50 cm long, compound with 11-31 leaflets, each leaflet 5-11 cm long, with a serrated margin. The leaves turn scarlet in the fall.