A poison oak plant can have up to nine leaflets, although three leaflets are most common. The plants grow in sun and shade in mixed evergreen forests, woodlands, chaparral, and riparian areas.

In my front yard, a poison ivy vine grows more than two-thirds of the way up the trunk of a large oak tree. Yellow-rumped warblers feast on the berries, which are always gone by the end of winter.

Larry Brown already knew the product he co-created could detect poison ivy, but he wanted to know if it could also detect poison oak and poison sumac. “You get the same rash from them all,” he ...

Poison ivy is an attractive vine with dark green, shiny leaves with broad serrated leaf margins. The leaves are trifoliate, or in groups of threes, producing gray-white berries 1/4 inch in diameter.

If you're anything like me you can't get anywhere near poison ivy or poison oak without spending the next two to three weeks scratching your skin off. And, I might add, it's not like snake venom ...

He went on to say that poison oak leaves start out a bright, shiny green in spring and summer and then turn a red/orange in the fall before they go brown and fall off in winter. “Poison oak is ...

Though the great outdoors offers fun family opportunities to camp, hike, explore nature or garden close to home, it also puts your family at risk for exposure to nature’s less pleasant side ...

The vine may grow as a low-growing shrub in the absence of trees or other support objects. The stems of poison ivy are smooth, light brown to gray. The leaves are very ornate and shiny with broad ...

Poison ivy (Toxicodendron radicans) is relatively easy to distinguish from other vines and, contrary to popular belief, poison oak (Toxicodendron pubescens) does not grow naturally in Ohio.