Female (left) and male spruce cones at the Arnold Arboretum. It's a more common sight to see separate male and female cones like this. (Courtesy William "Ned" Friedman) Every spring the conifer trees ...

In a remarkable twist of evolutionary adaptation, the rare Tibetan cypress, Cupressus gigantea, has shown unexpected genetic resilience. Despite facing the brink of extinction due to climate change ...

As we head into the winter season, we can see nature’s landscape change. The temperatures drop, animals begin to migrate or hibernate, the mountains get covered in snow and trees begin to lose their ...

The dark foliage of conifer trees dominates much of our landscape. It gets to be a bit overwhelming at times, so I’m always glad when spring leaf-out brings fresh, bright greens of the deciduous tree ...