The Douglas Fir Pinecone, the most common tree in Oregon, holds great significance for the Pacific Northwest. The Douglas Fir is named after the Scottish botanist, David Douglas, who explored Oregon and the Pacific Northwest. As a versatile timber tree, the Douglas Fir produces more wood products than any other tree. The strong and dense wood is used to produce large timber beams and railroad ties. The tree’s strength and durability represents the spirit of Oregon. The Douglas Fir is featured in Oregon’s license plate and the Cascadia Doug Flag. The lone-standing Douglas Fir on the flag symbolizes endurance, defiance, and resilience.