Something is killing some of Idaho’s last remaining single-leaf pinyon pine trees. The worrisome mystery falls squarely in the lap of Wallace Keck, superintendent of City of Rocks National ...

Marlín Pérez-Suárez, J. Tulio Arredondo-Moreno, Elisabeth Huber-Sannwald, Early stage of single and mixed leaf-litter decomposition in semiarid forest pine-oak: the role of rainfall and microsite, ...

A single-leaf pinyon pine under attack from black stain at City of Rocks National Reserve. Courtesy of City of Rocks National Reserve ...

The state park near Almo marks the northernmost extreme of the single-leaf pinyon pine’s range. They’re more common in the south, found in Nevada, Utah, New Mexico, California and Arizona.

Add to the long-studied global-warming perils of drought, insects, and wildfires, a new potential threat to the pinyon pine: dramatically lower production of seed-bearing cones.

University of Nevada, Reno doctoral student Elise Pletcher measures a single-leaf pinyon sapling as part of ongoing research to track the trends on pinyon-juniper woodlands. Disclaimer: AAAS and ...

Teachers, soldiers, social workers and community stalwarts. There's not just one single path to the Order of the Long Leaf Pine. Those who earn the honor blazed their own special trails. But all … ...