Hi Mr. Smarty Plants,
I wonder who among the wonderful staff at the Wildflower Center can answer this. I occasionally get requests for information on toxic or irritating plants. Beyond the obvious ones like poison ivy that everyone knows, what's there to look out for in Texas?
The newly published book: Hart, Charles R. et al. 2004. Toxic Plants of Texas: integrated management strategies to prevent livestock losses. Created by Texas Cooperative Extension. College Station: Texas A&M University Press. is an excellent source for poisonous agricultural plants, but you are right that it doesn't list several plants irritating to humans that aren't potentially deadly to livestock. University of Tennessee Agricultural Extension Service has a database of Poisonous Plants of the Southern United States and Colorado State University has a Guide to Poisonous Plants which both would more closely match our region than the Cornell University Poisonous Plants Informational Database. However, neither lists the "irritating" plants other than poison ivy. Shinner's and Mahler's Flora of North Central Texas (Diggs, George M. et al. 1999. Shinners&Mahler's Flora of North Central Texas. Fort Worth: Botanical Research Institute of Texas) gives information about the toxicity of plants in the North Central area of Texas, including Tragia (noseburn), Cnidoscolus (bull nettle/mala mujer), or Toxicodendron (poison ivy)
More Poisonous Plants Questions
Plant ID of unknown purchased plant from Boise ID June 24, 2012 - Hi! I bought a tree that the sales person didnt know what it was. I thought it was a cherry tree and now after about 3-4 yrs I know it is but..How do I know if it is an ornamental tree or real fruit t... view the full question and answer
Searching for poisonous plants from Kansas City November 13, 2010 - Looking on how to acquire wourali vine, upas, or arrow poison wood. view the full question and answer
Toxicity of Peruvian Lilies (Alstroemeria sp) for food decoration September 04, 2006 - Hi, I am trying to find out if I can decorate a cake using live alstroemeria laid on top of the icing. I would not want to eat the flower, just lay it on top to look pretty before removing and servi... view the full question and answer
Is Artemesia ludoviciana allelopathic? February 20, 2009 - I recently read that Artemisia ludoviciana is allelopathic to some other plants. I planted some last fall between a rusty blackhaw viburnum and a Mexican buckeye. Do you know whether it is phytotoxi... view the full question and answer
Plant ID from Villa Hills KY April 21, 2013 - Hello I have this plant but I don't know what it is. I want to know if it's edible or what it is. I think it's catnip.
view the full question and answer