KNP Rare Plants Database


 
KY Office of Kentucky Nature Preserves




Poison Sumac
Toxicodendron vernix
Family: Anacardiaceae

Protection Status:
State Status:  E
USFWS Status: 

Global Rank: G5
State Rank: S1

   

Photo by B. Eugene Wofford @ TENN
Habitat:
Wet forests or thickets such as bottomland hardwood forests but also possible in peaty seepage areas.

Species Description:
Small tree.

Phenology:
Flowering Period: Early May to mid June.
Fruiting Period: Early August to late September.

Additional Information at NatureServe

Diagnostic Characteristics:
Unlike the other members of this family in this area, the leaf of poison sumac has seven or more leaflets and these are entire, not toothed. It is a shrub to 5m height. To distinguish from non-poisonous sumacs, the infloresence is loose and the fruit are white.

Management:
Avoid changes in moisture/hydrologic conditions at the site. Changes could result from overstory removal, stream/wetland alteration or vegetation removal that would result in increased erosion. Timber removal would be detrimental.

Global Range:


Known Kentucky Occurrences:
Species occurrence map

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Data Last Updated: November 2018
Office of Kentucky Nature Preserves
300 Sower Blvd
Frankfort,KY 40601
Phone: (502) 573-2886
Email:
naturepreserves@ky.gov
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