Rhus glabra L. - Smooth Sumac


 

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Rhus glabra - (image 1 of 5)

 

Taxonomy

Family: Anacardiaceae

Habitat

Fencerows, roadsides, railroads, abandoned fields. Border of woodlands.

Associates

 

 Distribution

Throughout the U.S., Mexico and southern Canada.

Morphology

Colonial shrub or small tree with few branches. Twigs and petioles glabrous. Leaves pinnately compound; leaflets 11-31, acuminate, serrate, pale beneath. Flowers greenish-yellow in a terminal inflorescence. Fruits red, somewhat flattened, and covered with short, thick hairs.

Notes

Flowers early June to early July

Wetland indicator: Upland

One of the best shrubs for fall color, consistently turning a brilliant red in autumn.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY

 

Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
 


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 Michael Hough © 2005