Rhus typhina L.
Family: Anacardiaceae
staghorn sumac
[Rhus hirta (L.) Sudw.,  more...]
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Paul Drobot  
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Robert W. Freckmann  
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University of Wisconsin - Madison (WIS-VP)  
Etymology: Rhus: derived from rhous, an ancient Greek name for Sumac
Plants: perennial shrub or small tree usually 4'-15' tall and 2"-4" in diameter; young parts all with dense, soft hairs but no dots
Leaves: alternate, pinnately-divided into 9-29 toothed leaflets with pale undersides, main axis without wings
Flowers: blooms June-July
Fruits: red, long-haired, partially-flattened berry
Habitat: sunny; dry
Conservation Status: Native - potentially invasive
Along edges or in clearings in mesic to wet forests of oak-hickory, pine-maple, hemlock-hardwoods, oak-maple, oak-pine, maple-basswood, birch-balsam poplar-balsam fir, red maple-ash, red maple-birch-balsam poplar, elm-ash, hemlock-maple-ash; pine barrens, fields, pastures, mesic prairies, lakeshores, limestone cliffs and outcrops (especially the Niagara Escarpment), clay bluffs, along roadsides and railroads, edges of timber plantations.

Like R. glabra, this species has greatly benefited from the suppression of fire and creation of open areas and no doubt increased its range in the state since European settlement.  Rhus typhina is more common in the northern half of the state with scattered populations in the south.  However, it is quite common in the southern counties bordering Lake Michigan and in the central part of the Driftless Area

Rhus typhina and R. glabra hybridize frequently to form R. ×pulvinata Greene which is quite common in the state.  The hybrids are highly variable and are usually easily recognizable when mature fruit is present.  They will usually exhibit the stem character of one parent and the fruit pubescence of the other or combine the fruit pubescence of both parents.

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Robert W. Freckmann  
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Paul Drobot  
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Robert Bierman  
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Paul Drobot  
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Paul Drobot  
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Elizabeth Parnis  
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Matthew L. Wagner  
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Paul Drobot  
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Robert W. Freckmann  
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Darrin Kimbler  
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Hugh H. Iltis  
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Aaron_Carlson  
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