"Poison ivy — poisonous and native to the eastern US — is found everywhere, along roads, scrambling over walls or up trees, at the seashore within reach of salt spray and in the best of gardens." -Donald Wyman, Wyman's Gardening Encyclopedia.
The articles in the list below have been helpful in understanding the poison ivy challenge. Perhaps you'll find some "Ah-ha" moments by reading them over yourself. I also would like to clarify that I have chosen to focus on one specific species of Toxicodendron, namely climbing poison ivy. I realize that the genus Toxicodendron grows North America-wide, and in many ecological environments. Perhaps the specific plant you are interested in is not climbing poison ivy, so I offer the following links as a guide towards helping you in your particular search.
If you have any favorite poison ivy articles not listed here, I would be grateful to have a link to useful poison ivy information. If you wish to send me any links, please include a brief description of the article including author and title, as well as the type of poison ivy discussed.
Websites and Other Resources
- It Eats CO2 for Breakfast — Anne Raver, New York Times, Home & Garden section. This article features Umar Mycka, Poison Ivy Horticulturist.
- Ohio Perennial & Biennial Weed Guide — Ohio State University
- Poison Oak — Statewide Integrated Pest Management Program, University of California Agriculture & Natural Resources. This website has great information on poison oak that is relevant to poison ivy.
- Poison Ivy Growing Faster, More Virulent — NPR, 20 July 2010, with plant physiologist Lewis Ziska and show host Michele Norris.
- Poison Ivy Itchier, More Plentiful With Warming, Study Says — National Geographic, 30 May 2006.
- 2014 Poison Ivy Citizen Scientist Project — Poison Ivy Citizen Scientist Website. Jelesko Laboratory at Virginia Tech. John Jelesko.
- Has increased CO2 impacted the northerly limit of Eastern Climbing Poison Ivy over the last 50 years? — Umar Mycka. Research presented at the national convention of the Ecological Society of America, August 2010, in Austin, Texas.
- The logistics of working with poison oak — Barbara Lachenbruch Gartner, Stanford University.
- Relative growth rates of vines vs. shrubs of poison oak — Barbara Lachenbruch Gartner, Stanford University.
- Biomechanics of vines vs. shrubs of poison oak — Barbara Lachenbruch Gartner, Stanford University.
- Is the climbing habit of poison oak ecotypic? — Barbara Lachenbruch Gartner, Stanford University.
- Seasonal Variation of Urushiol Content in Poison Oak Leaves — Barbara Lachenbruch Gartner, et al. Stanford University.
- Hydraulic properties of poison oak stems — Barbara Lachenbruch Gartner, Stanford University.
- Outsmarting Poison Ivy and Its Relatives — USDA Forest Service.