Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Rhus glabra L. image
Photographer: Kenneth J. Sytsma           

Botanical Illustration

Botanical Illustration

Hugh H. Iltis

Michael Clayton

Merel R. Black

Merel R. Black

Marion Sheehan

Robert W. Freckmann
Family Anacardiaceae
Rhus glabra L.
smooth sumac
Rhus: derived from rhous, an ancient Greek name for Sumac
glabra: Latin for "smooth" referring to lack of hairs on leaves and stems
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native - potentially invasive
Plant: perennial shrub usually with only a few branches; twigs smooth; forming large colonies
Flower: in terminal cluster to 8"
Fruit:bright red, flattish, very hairy berry
Leaf:alternate, pinnately-divided into 11-31, often toothed leaflets, very pale below, main axil not winged
Habitat: uplands, roadsides, woods edges

More Information Natural Communities Herbarium Specimens
All Rhus list Ethnobotany Information Google- Images or Text
Rhus borealis Greene
Rhus calophylla Greene
Rhus glabra L. var. laciniata Carrière
Rhus glabra L. var. occidentalis Torr.

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