The nonnative poison hemlock, one of North America's deadliest plants, are in full bloom all across Greater Columbus. Poison hemlock (Conium maculatum L.) contains highly toxic piperidine alkaloid compounds that cause respiratory failure and death in mammals. Here's what you need to know about what these plants:What is poison hemlock? Poison hemlock is a flowering plant that belongs to the carrot family, Apiaceae and is native to Europe and North Africa. Poison hemlock can also be identified by the purple-colored spots on its main stem.

Source: The North Africa Journal May 30, 2024 04:16 UTC