Characteristics
Alnus incana (L.) Moench ssp. rugosa (Du Roi) R.T. Clausen
speckled alder
Forms dense thickets along drainage channels, edges of streams, edges of lakes, fens, bogs, marshes, and forested swamps. A common wetland shrub that occurs in numerous wetland habitats.
Tree, Shrub
Perennial
Vascular
5
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Native FACU (NWPL EMP) FACW (NWPL NCNE) S5 (State Rank) G5T5 (Global Rank)
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Classification
Eudicots
Fagales
Alnus incana (L.) Moench ssp. rugosa (Du Roi) R.T. Clausen - speckled alder
Citation
Alnus incana (L.) Moench ssp. rugosa (Du Roi) R.T. Clausen
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Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.

Source
Synonyms
Plant Photos
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 29 Mar 2002 - 1
Alnus_incana_ssp_rugosa_ANelson_020329_01.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 24 Jun 2002 - 1
Alnus_incana_ssp_rugosa_ANelson_020624_01.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 11 Mar 2003 - 1
Alnus_incana_ssp_rugosa_ANelson_030311.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 20 Mar 2003 - 1
Alnus_incana_ssp_rugosa_ANelson_030320_05.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 08 Apr 2008 - 1
Alnus_incana_ssp_rugosa_ANelson_080408_01.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 08 Apr 2008 - 1
Alnus_incana_ssp_rugosa_ANelson_080408_03.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 08 Apr 2008 - 1
Alnus_incana_ssp_rugosa_ANelson_080408_06.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 08 Apr 2008 - 1
Alnus_incana_ssp_rugosa_ANelson_080408_08.jpg