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Malheur Experiment Station
Oregon State University

Rhus glabra

Smooth sumac (Rhus glabra)
Rhus glabra
Common Names smooth sumac
Family Sumac
Flower Color Red
Plant Type Shrub - Tree
Native Yes

Smooth sumac (Rhus glabra) Smooth sumac (Rhus glabra) Smooth sumac (Rhus glabra) Smooth Sumac (Rhus glabra)


Smooth Sumac (Rhus glabra)
Smooth Sumac (Rhus glabra) Smooth Sumac (Rhus glabra) Smooth sumac (Rhus glabra)


Smooth sumac (Rhus glabra) Smooth sumac (Rhus glabra) Smooth sumac (Rhus glabra) Smooth sumac (Rhus glabra)

Smooth sumac leaves become very colorful in the fall. Fall colors can be brought on by water stress during the summer.

In the Treasure Valley of Oregon and Idaho and the surrounding sage brush steppe, there is insufficient rainfall under natural conditions for smooth sumac. Consequently the shrub can be found growing naturally on hillsides where water accumulates from snow or runoff. Smooth sumac also can colonize uncultivated areas around buildings or along irrigation or drainage ditches where more water is available than to 8-12 inches per year that is usually received.


For additional information please send an e-mail request to:
Dr. Clinton C. Shock
Clinton.Shock@oregonstate.edu

Malheur Agricultural Experiment Station
595 Onion Avenue
Ontario, OR 97914
(541) 889-2174
FAX (541) 889-7831

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