Some weeds are worse than others, especially poisonous weeds that are dangerous to humans, livestock, and pets! While attending several summer parties in Northwest Ohio (graduation, July 4th, picnics), several poisonous noxious weeds were observed this year. Poison hemlock (Conium maculatum L.) and wild parsnip (Pastinaca sativa L.) are invasive non-native weeds often found growing together in…
