Volunteer arborists in San Luis Obispo are moving forward with efforts to relocate a more than 100-year-old oak tree at the ...

Many of Southeast Asia’s native oak species are under high stress from human pressures and lack protection, according to a ...

Its health problems began in July when half of it crashed to the ground. It suffered a final blow Sunday. What comes next?

Baltimore has a new official City Tree for the first time in 50 years. Since 1974, the Chanticleer pear, or Callery pear, has ...

Baltimore has a new official tree — a true Maryland native, known for its height, climate resilience and yellow flowers.

Six strong candidates vied for the honor, but online voters chose the towering, flowering Liriodendron tulipifera to replace the now frowned-upon Bradford pear.

Paul Suflita of Colorado Springs won his third Oak Tree Half Marathon in six years on Sunday, completing the 13.1-mile course ...