Trees of San Juan Island National Historical Park

Douglas fir, with the scientific name Pseudotsuga menziesii, also known as Oregon pine or Douglas spruce, is an evergreen conifer species native to western North America. The common name is misleading since it is not a true fir, i.e., not a member of the genus Abies. For this reason the name is often written as Douglas-fir (a name also used for the genus Pseudotsuga as a whole). less ↑

Abies grandis (Grand Fir, Giant Fir, Lowland White Fir, Great Silver Fir, Western White Fir, Vancouver Fir, or Oregon Fir) is a fir native to the Pacific Northwest and Northern California of North America, occurring at altitudes of sea level to 1,800 m. It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range. less ↑

Thuja plicata, commonly called Western or Pacific redcedar,giant or western arborvitae,giant cedar, or shinglewood, is a species of Thuja, an evergreen coniferous tree in the cypress family Cupressaceae native to western North America. Despite its common names, it does not belong with the true cedars within the genus Cedrus. It is the Provincial tree of British Columbia, and has extensive applications for the indigenous First Nations of the Pacific Northwest. less ↑

Taxus brevifolia (Pacific yew or western yew) is a conifer native to the Pacific Northwest of North America. It ranges from southernmost Alaska south to central California, mostly in the Pacific Coast Ranges, but with an isolated disjunct population in southeast British Columbia, most notably occurring on Zuckerberg Island near Castlegar and south to central Idaho. less ↑

Western white pine, Pinus monticola, also called silver pine, and California mountain pine, in the family Pinaceae, is a species of pine that occurs in the mountains of the western United States and Canada, specifically the Sierra Nevada, the Cascade Range, the Coast Range, and the northern Rocky Mountains. The tree extends down to sea level in many areas, particularly in Oregon and Washington. It is the state tree of Idaho, and is sometimes known as... less ↑

Picea sitchensis, the Sitka spruce, is a large coniferous evergreen tree growing to almost 100 m tall, and with a trunk diameter at breast height that can exceed 5 m (see List of superlative trees. It is by far the largest species of spruce; and the fifth largest conifer in the world (behind giant sequoia, coast redwood, kauri and western redcedar); and the third tallest conifer species (after coast redwood and coast Douglas-fir). The Sitka spruce... less ↑

Juniperus scopulorum (Rocky Mountain Juniper) is a species of juniper native to western North America, in Canada in British Columbia and southwest Alberta, in the United States from Washington east to North Dakota, south to Arizona and also locally western Texas, and northernmost Mexico from Sonora east to Coahuila. It grows at altitudes of 500-2,700 m on dry soils, often together with other juniper species. less ↑