Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

Over a decade ago, when Peter Barron started removing poison ivy for a living, he decided to document his work. "Every year I always take pictures of the poison ivy as it's blooming," said Barron ...

Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

Here’s what to know about identifying & removing poison ivy, spotting lookalikes, plus what to do if you get a rash/reaction from the oil.

WebMD provides information on allergies to poison plants -- poison ivy, oak, and sumac -- and how they're treated.

Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

A poison ivy rash is caused by urushiol, a highly potent oil found in all parts of a vine-like plant called Toxicodendron radicans (it's also in poison ivy's "cousins", poison oak and poison sumac).

Many times, gardeners are unaware of the presence of poison ivy in their landscape until it's too late.

That itchy, uncomfortable rash from poison ivy can ruin a perfectly good outdoor adventure. The biggest challenge is this toxic plant is notoriously tricky to identify, even for experienced hikers ...

There are a number of plants to avoid in Delaware. Here's how to identify the big three – poison ivy, oak and sumac.