2. Poison Ivy, Oak, and Sumac
Poison ivy, oak, and sumac are allergic skin rashes (or Rhus dermatitis ) caused by the plants of the same name. All three plants secrete a potent, irritating oil known as urushiol that causes blistering and intense itching once it penetrates the ...
Healthline.com (OMS Preferred Provider)

3. Poison Ivy, Oak, or Sumac
Poison ivy, poison oak, and poison sumac are plants that can cause a skin rash called allergic contact dermatitis when they touch your skin. The red, uncomfortable, and itchy rash often shows up in lines or streaks and is marked by...
Healthline.com (OMS Preferred Provider)

4. Poison Ivy, Oak and Sumac: MedlinePlus
If you spend time outdoors, chances are you have been bothered by poison ivy, poison oak or poison sumac at some point. Most people are sensitive to the plants' oily sap. The sap is in the root, stems, leaves and fruit of these...
MedlinePlus (Offsite)

5. Poison Ivy
Leaves of three, let them be! You've probably heard that little rhyme about poison ivy. But did you know that poison ivy, poison oak, and poison sumac all contain the same rash-causing...
kidshealth.org

6. Poison ivy
Poison ivy grows on a wide range of habitats, from moist and shady to open and dry. Poison ivy is found in most of the southeast, between Arizona and Florida in the south, to Nebraska and Canada in the north.
www.sfrc.ufl.edu

7. Poison Ivy
It's called urushiol (say: yoo- roo -shee-ol), a colorless, odorless oil (called resin) contained in the leaves of the plants.
www.seattlechildrens.org

8. Poison Ivy / Poison Oak
Scratching poison ivy blisters will not spread the rash. In addition, the poison ivy rash is not contagious - only urushiol (oil found in the sap of poison ivy) can cause a reaction.
www.muschealth.com

9. OhioHealth - Poison ivy rash
A poison ivy rash is a type of skin irritation called allergic contact dermatitis. Poison ivy rash is caused by a sensitivity to an irritant found in poison ivy and similar toxic plants, such as ...
ohiohealth.com

10. Poison Ivy Quiz
It's fun to take a hike through the woods: listening for songbirds, looking at wildflowers, spying the occasional chipmunk. You also need to keep an eye out for the bane of hikers—poison ivy. Find out how much you know about this annoying plant by...
www.fairview.org