Lowland fir is an evergreen tree found in the coastal regions of western North America. This conifer tree is also known by different names such as Douglas fir, Oregon pine, red fir, and tree fir. These synonyms vary based on the geographical region and the specific type of the tree. The term Oregon pine is often used in the UK and Europe, while the name Douglas fir is popular in North America. Red fir and tree fir are terms that are used specifically to describe certain types of lowland fir trees. Regardless of the name, lowland fir is a popular choice for timber and is also commonly used as a Christmas tree.