Vascular Plants of North Carolina
BONAP's Map
Poison Ivy: Spot the Plant, Treat the Rash | GearJunkie
Finding Poison Ivy, Oak, and Sumac Plants? | Tec Labs
Toxicodendron radicans (Eastern Poison Ivy): Minnesota Wildflowers
Poison Ivy in Michigan – Toxicodendron radicans and rybergii - Plant & Pest Diagnostics
Western Poison-ivy
Poisonous Plants: Geographic Distribution | NIOSH | CDC
MAPS - Poison Ivy - Minars Dermatology
Western Poison Ivy
US Wildflower - Western Poison Ivy, Northern Poison Ivy - Toxicodendron rydbergii
Identify Poison Ivy, the Poison Oaks, and Poison Sumac
Poison Oak vs. Poison Ivy | Tec Labs
eastern poison-ivy, Toxicodendron radicans Sapindales: Anacardiaceae
Poison Ivy
Poison Oak: How to Identify It, and What to Do if You've Been Exposed - Dave's Garden
UWL Website
Virginia Tech Dendrology Fact Sheet
Poisonous Plants: Geographic Distribution | NIOSH | CDC
2 Poison Ivies, 2 Poison Oaks, Poison Sumac
Toxicodendron vernix - Wikipedia
2 Poison Ivies, 2 Poison Oaks, Poison Sumac
Poisonous Plants: Geographic Distribution | NIOSH | CDC
