I was looking forward to my last day of fieldwork this season. No heavy gear to carry, no plants to collect. I had a simple job: climb a mountain and download the summer’s data from my weather station before the snows buried it for the winter. The first snow came by early September but melted…

Autumn is when the quaking aspen trees begin to show off their mysterious side. Questions fall into place, but answers are hard to come by. At lower elevations in the Rockies, aspen (Populus tremuloides [Salicaceae]) is everywhere. Its clones dominate the landscape, creating a sea of white trunks and dark green leaves that rustle softly…