Enjoy a 4-mile plant hike later this month with the Milo Baker chapter of the California Native Plant Society.

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

A meadow where the Santa Monica Mountains Fund has planted oaks and other native trees. The goal is to restore the land back to oak woodlands and coastal sage scrub, removing invasive grasses ...

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

Oak trees appeared yellow with their thousands of canaries and goldfinches. And those coastal live oaks — how grand they were!

Just thinking about poison ivy can make you itch. Blistering rashes on your arms and ankles, oozing bumps between your fingers and eyelid-swelling exposures are all-too-familiar summer hazards.

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