04/26/2026
For those who don’t know what Poison Ivy, Poison, Oak, Poison Sumac, look like here are photos of each.
85 - 90% of people are allergic these 3 plants due to the oily resin (urushiol) found in each plant.
- Poison Ivy is characterized by the three-leafed compound leaves, that vary in size and shape, they also flower in small cluster with greenish flowers from May to July.
- Poison Oak is characterized by 3 - 5 lobed leaflets that closely resemble those found on oak trees, they vary in color from dullgreen in summer to red-orange in the fall, they are often hairy in appearance. They tend to grow as a small shrub or a climbing vine, that can reach heights or 10 feet in some cases. Poison Oak is native to the South Eastern United States.
- Poison Sumac is characterized by 7 to 13 leaflets which are smooth and lack teeth, they produce greenish to greenish-white berries that hang loosely from the branches, they are also defined as a swamp shrub. Poison Sumac is found all over Eastern Canada and United States.
Urushiol is highly toxic when burned do not burn any of these plants as they release extremely harmful toxins that can be fatal.
Are you allergic to any of these comment below.