TUSCO TV - Poison Hemlock is in it's young stage in the spring. It is often hard to identify. Symptoms of hemlock poisoning can appear anywhere between 30 minutes to hours after
Watch out: Two poisonous plants seen in Sussex County | Delaware First Media
Poison-hemlock identification and control: Conium maculatum - King County
Poison hemlock- Conium maculatum - Plant & Pest Diagnostics
Pennsylvania pests: Deadly poison hemlock re-emerging; officials on lookout for spotted lanternfly compliance | Pittsburgh Post-Gazette