(NEXSTAR) – You may have managed to dodge the dreaded rashes often associated with poison ivy, poison oak or poison sumac, ...

Poison ivy, along with poison oak and poison sumac, has an oily coating called urushiol, which often causes redness, swelling ...

Here's a little help on what to avoid in your garden or on a walk and how to identify poison ivy, poison sumac and poison oak. Poison ivy: The plant usually has three broad, tear-shaped leaves. It can ...

Poison sumac grows along the waters edge of a strip pit in Warrick County near Boonville, Ind., Tuesday afternoon, Oct. 13, 2020.© DENNY SIMMONS / COURIER & PRESS ...

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

Another poison ivy relative, poison sumac is a flowering shrub or woody plant that contains the same oil. However, it is considered more allergenic as it results in a very inflamed, painful, and ...

Contact with anything that touched the poison ivy, oak or sumac can cause a rash within 12 to 72 hours. These include pets, clothes, tools, shoes or a hiking backpack.

Poison sumac thrives in swampy or marsh-like areas, especially near rivers. It grows as a tall shrub or small tree and can reach heights over 15 feet. Its leaves are smooth-edged and arranged in pairs ...

Meanwhile, poison sumac looks different because it has clusters of seven to 13 smooth leaflets arraigned in pairs. It grows as a tree, and when fully grown, it can reach up to 20 feet tall.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.