PORTLAND, Ore. (KOIN) — Pacific poison oak is found throughout Western Oregon and Washington and can cause painful rashes and blisters. Luckily, the plant is avoidable if you know what to look for.

Invasive borer beetle threatens Oregon's oak trees, state looks at options to control the pest by KATU Staff Mon, September 18th 2023 at 5:15 PM Updated Mon, September 18th 2023 at 5:22 PM 6 ...

An Inland Empire city has approved a development project within 450 feet of the third oldest known living organism in the world — a sprawling, shrub-like oak tree that is more than 13,000 years old.

Why your oak trees are dropping so many acorns this fall KUT 90.5 | By Alexandra Hart Published November 28, 2023 at 11:30 AM CST Listen • 4:45 ...

The historic Linden Oak in Bethesda, Md., in 2018. It was the largest white oak tree in Montgomery County and more than 300 years old. (Joli McCathran) ...