The Gymnosperm Database


Ginkgo foliage, showing autumn coloration, from a tree at the Los Angeles Arboretum [C.J. Earle, 2009.12.06]>.


Cupressus nevadensis, a mature tree in habitat [C.J. Earle, 2014.01.17].


"A magnificent stand of mixed Port Orford white cedar [Chamaecyparis lawsoniana] and fir timber located in Curry County, Oregon, on the property of the C.A. Smith Timber Company. A fair example of the mixture of fir and cedar growth on Curry County lands" (American Lumberman 1911).


Abies magnifica, a mature tree in Yosemite National Park [C.J. Earle, 2008.07.01].


"Big Tree Bob" Van Pelt with one of the largest known specimens of Larix occidentalis, on the road to Haney Meadows, Washington [C.J. Earle, 2003.08.15].


River in Alaska bordered by Picea glauca forests surrounded by muskeg containing scattered small P. mariana [Dr. Linda B. Brubaker].


Pinus longaeva, an extraordinarily gnarled tree, in the White Pine Mountains [R. Van Pelt, 2001.09.26].


A mature Pinus lambertiana along the Devil's Slide Trail on Mt. San Jacinto, CA [C.J. Earle, 2004.04.10]. Sugar pine is unique in its crown form - it is common for trees, like this one, to have major limbs that reach impossibly far out from the trunk for no apparent reason.


Pinus contorta growing in a peat bog on the Olympic Peninsula in Washington. P. contorta subsp. contorta is commonly found in bogs throughout its range [C.J. Earle, 1999.04].


Tsuga mertensiana growing by a lake in Washington [C.J. Earle].


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Conifers of Western North America


I wrote this page while I was writing the field guide, Trees of Western North America. This list includes native and naturalized species occurring in the U.S. and Canada west of the 100th meridian of longitude.

Taxa List

Pinophyta, Conifers and allies.

Ginkgo biloba, ginkgo.

Araucaria araucana, monkeypuzzle tree

Sciadopitys verticillata, umbrella pine

Cupressaceae, Cypress family.

Cupressus, Cypresses

Assorted other Cupressaceae:

Juniperus, junipers.

Pinaceae, pine family.

Abies, firs

Cedrus, cedars

Larix, larches

Picea, spruces

Pinus, pines

Pines of section Balfourianae:

Typical white pines:

Piñon pines:

Ponderosa-like pines:

Closed-cone pines:

Native pines of section Pinus:

Naturalized pines of section Pinus:

Naturalized pines of section Pinaster:



Taxaceae yews

Last Modified 2017-12-29