DNR warns of poison plants Wisconsin wildlife officials are warning people to be on the lookout for a couple of poisonous plants. Department of Natural Resources plant ecologists say poison hemlock and wild parsnip are becoming more common along roadsides. The sap from poison hemlock contains neurotoxins that can be absorbed through the skin; the story goes that Greek philosopher Socrates died after drinking poison ...
June 16, 2013 - WISC-TV Madison