Douglas fir (Pseudotsuga menziesii) is a North American species of the pinaceous family that was introduced into Breton parks in the mid-19th century. Its area of origin extends along the Pacific coast from Canada to California. This species is one of the most widely used in reforestation in France. In Brittany, Douglas fir areas represent about 12,000 ha, or 4% of the wooded area. The Douglas is a fast-growing tree, which is why it is used extensively in reforestation. It also has good technical qualities (wood processing for carpentry, exterior construction because it is rot-proof to the core).

- Growth: strong
- Height: 40 to 60 meters
- Foliage: persistent with dark cover
- Trunk: straight with smooth bark dotted with numerous fragrant pustules
- Bark: cracked and corky with age
- Color: reddish brown