Back     Home     Next COMMON PLANTS of WISCONSIN UWSP
Biology 130

  

Toxicodendron radicans, T. rydbergii; poison ivy [Anacardiaceae]  Climbing, woody vine (T. radicans), or small rhizomatous shrub (T. rydbergii) with very small (1/8" wide) green flowers in inconspicuous branching axillary clusters.  Small (¼") fruit grayish or yellowish white.  Leaves compound but variable in appearance, with 3 entire or coarsely toothed leaflets, sometimes shiny, sometimes not.  Open woods, wood edges and openings, fencerows, floodplains, and prairies.  Flowers in late spring and early summer.  T. vernix (poison sumac) is a related shrub found in swamps throughout much of the state.  All parts poisonous to the touch in all seasons.  [092]

   

 

 

 

 

 

Copyright information:
The images contained in the COMMON PLANTS of WISCONSIN web site may be freely used for non-profit, educational purposes, as long as complete citation information is included.

Use in any copyrighted document or any web site is prohibited without specific permission of the University of Wisconsin - Stevens Point Department of Biology.  Please contact Webmaster for more information.

 

Copyright 2003, 2007, 2013 University of Wisconsin Board of Regents