Research > Reference Library > Trees of Canada JOIN MAIL LIST: SEARCH: Discover GF Research Education Newsroom How to Help click image to enlarge Douglas Fir Douglas Fir (costal)Pseudotsuga menziesii (Mirb.) Franco Coastal Douglas-fir is a giant (>85 m) and long-lived (>1000 years) species. Its characteristic pointy buds, three-pronged bracts longer than the cone scales, and very thick and furrowed mature bark are all distinguishing features of this species. Douglas Fir (interior)Pseudotsuga menziesii (Mirb.) Franco Interior Douglas-fir is a medium-sized tree (>35 m). It possesses similar noteworthy features to the coastal Douglas-fir although its cones are shorter and stalkier, and the foliage is coloured with a bluish hue. The First Peoples ate the seeds of interior Douglas-fir.
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