Pinus ponderosa
 Pinus ponderosa commonly known as the ponderosa pine bull pine blackjack pine or western yellow pine is a very large pine tree of variable habit native to western United States and Canada. It grows in various erect forms from British Columbia southward and eastward through 16 western states. It has been successfully introduced in temperate regions of Europe. It was first seen and collected in 1826 in eastern Washington near present-day Spokane.