PROTECTING WISCONSIN'S BIODIVERSITY

 
 
   
 
Scientific Name Common Name Global Rank State Rank Federal Status WI Status

Fragrant Sumac (Rhus aromatica)

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Photo by R. Schulenberg

 

Counties with Mapped NHI Occurrences

Fragrant Sumac (Rhus aromatica), a Wisconsin Special Concern plant, is found in woodlands with dolomite or less commonly sandstone near the surface. Blooming occurs late-April through late-May, fruiting early-July through early-September. This species can be identified year-round.

 
 
 

Fragrant sumac is a shrub, up to 2m tall, with pale yellow flowers, in several short (1-2cm), spike-like lateral clusters formed from axillary buds in late-summer of the previous year and expanding with the leaves in the spring. Fruits are 4-5mm, bright red, and densely hairy. Leaves are alternate, divided into 3 leaflets, which are sessile or nearly so. At least the terminal leaflet is few-toothed or cleft above the middle. It is malodorous, frequently branched, rounded, and often forms thickets.

It can be distinguished from other sumacs by its 3 leaflets that are all sessile or nearly so.

Blooming occurs late-April through late-May, fruiting early-July through early-September.

Perennial. This species can be identified year-round.

Associated species include Acer rubrum, Quercus alba, Q velutina, Xanthoxylum americanum, and Ptelea trifoliata.

Fragrant sumac is found in woodlands with dolomite, or less commonly sandstone, near the surface.

Avoid locating landings, staging areas, or access routes on or near known populations.

Avoid broadcast spraying of herbicides and use care with spot spraying.

Avoid locating landings, staging areas, or access routes in open sandy areas dominated by native grasses.

This species overwinters above ground, meaning that seasonal restrictions like conducting the a project on frozen ground will not result in avoidance. Therefore, known individual plant locations should be avoided year-round. Consult with a biologist, if needed.

Prescribed burns and/or brushing may be beneficial, dependent on local site conditions and burn frequency. Rotational burns with annual unburned refugia may be preferred.

Maintain partial canopy to encourage woodland species, avoid closed-canopy conditions.

Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.