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{{Taxobox
| color = lightgreen
| name = ''Rhus glabra''
| image = Rhus glabra.jpg
| image_width = 240px
| image_caption = ''Rhus glabra'' fruit
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Dicotyledon|Magnoliopsida]]
| ordo = [[Sapindales]]
| familia = [[Anacardiaceae]]
| genus = ''[[Rhus]]''
| species = '''''R. glabra'''''
| binomial = ''Rhus glabra''
| binomial_authority = [[Carolus Linnaeus|L.]]
}}

'''''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 (unless mistaken for ''[[Poison_Sumac|Rhus vernix]]'', poison sumac, in the absence of mature fruit) smooth sumac has a spreading, open-growing [[shrub]] growing up to 3 m tall, rarely to 5 m. The [[Leaf|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. The [[flower]]s are tiny, green, produced in dense erect [[panicle]]s 10-25 cm tall, in the spring, later followed by large panicles of crimson [[berry|berries]] that remain throughout the winter. The buds are small, covered with brown hair and borne on fat, hairless twigs. The bark on older wood is smooth and grey to brown.

==External links==
*[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?31689 Germplasm Resources Information Network: ''Rhus glabra'']
*[http://www.cas.vanderbilt.edu/bioimages/species/frame/rhgl.htm Bioimages: ''Rhus glabra'']

{{Commons|Rhus glabra}}

[[Category:Sapindales]]
[[Category:Flora of Arizona]]
[[Category:Flora of New Mexico]]
[[Category:Medicinal plants]]
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