When it comes down to it, L.A.’s palm trees are like the lilies of the field, glorious to behold but neither toiling nor ...

These small conifer trees for birds provide food and refuge in all seasons. These varieties are perfect for small landscapes.

The Douglas fir is an indelible symbol of the Pacific Northwest. The thick-barked native represents the aesthetics of biologically rich Cascadia and the checkered past of overlogging.

The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

Comparing pollen records from three lakes in different geological substrates highlights the influence of geology and climate on long-term vegetation development.