The notorious spring rains and floods of 2013 slapped back one voracious, drought-opportunistic pest, the mountain pine beetle, according to CSU. And a relatively wet 2023 for much of the state ...

Sandwiched between a lodgepole pine on the left and a foxtail pine on the right is the first Jeffrey pine tree UC Davis Professor Hugh Safford observed in Sept. 2024 on a hike along Mount Kaweah in ...

A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.