Entire regions of trees are disappearing because of invasive pests, disease and a changing climate. The key to their ability ...

According to botanist John Thomas Howell’s “Marin Flora,” five pine species grow in Marin. Bishop pine, Monterey pine, knobcone pine, Torrey pine and Coulter pine can be distinguished from ...

Entire regions of trees are disappearing because of invasive pests, disease and a changing climate. The key to their ability ...