Softwood conifers include pine, spruce, fir, and cedar trees. But despite the name, wood hardness varies among the conifer species. ... Identify 6 Common North American Trees by Their Leaves.

Port Orford cedar trees in Redwood National Park that were killed by the root disease caused by the pathogen Phytophthora lateralis. Credit: Richard Sniezko. In the early 2000s, U.S. Forest Service ...

The Texas A&M Forest Service is warning Texans of the upcoming cedar fever season, an allergic reaction to pollen released by mountain cedar trees. According to the forest service, the Texas Hill ...