Jun 4, 2025 · Learn how to spot poison oak, tell the difference between poison oak and poison ivy, and treat a poison oak rash with The Old Farmer's Almanac Guide.

Mar 17, 2025 · Poison oak rash is an allergic reaction to the leaves or stems of the western poison oak plant (Toxicodendron diversilobum). Home remedies and medical treatments can …

May 5, 2023 · Other rash-inducing poisonous plants include poison oak and poison sumac. These plants produce an oily sap that contains urushiol (pronounced yer-OO-shee-all), which causes …

May 21, 2024 · Poison oak grows low to the ground and has clusters of three fuzzy leaves with rounded or pointed tips. Sometimes they also have berries which are typically pale yellow or …

Dec 23, 2024 · Most people are sensitive to the oil in poison oak. Usually, an itchy, red rash will appear that can take weeks to clear up. Learn more about how to identify a poison oak rash …

Oct 21, 2025 · Poison oak is similar to its close relatives poison ivy and poison sumac because they are all members of the same botanical family. The most common type of poison oak, …

Toxicodendron diversilobum (syn. Rhus diversiloba), commonly named Pacific poison oak[2] or western poison oak, is a woody vine or shrub in the sumac family, Anacardiaceae.

Jun 18, 2025 · Discover how to identify poison oak, understand how it spreads, and effective home remedies to relieve itching, reduce inflammation, and help your skin heal.

Jul 16, 2025 · Poison oak, also known as Atlantic poison oak, oakleaf ivy, or oakleaf poison ivy, is a low-growing, upright shrub that is about 3 feet tall. It is found in dry, sunny locations and …

Aug 30, 2024 · Poison ivy, poison oak, and poison sumac are plants that contain an irritating, oily sap called urushiol. Urushiol triggers an allergic reaction when it comes into contact with skin,...