Oregon Maple Tree Information

Images of Oregon Maple:

Oregon Maple grows in the following 4 states and provinces:

British Columbia, California, Oregon, Washington

Information about Oregon Maple:

More information about Oregon Maple may be found here.

The Acer Macrophyllum is commonly known as the Big-leaf Maple, Bigleaf Maple, Broadleaf Maple as well as Oregon Maple.

The currently accepted scientific name of bigleaf maple is Acer macrophyllum Pursh. . There are no recognized varieties, subspecies, or forms.

Bigleaf maple occurs in the Pacific Coast region from just south of the Alaska Panhandle in British Columbia south through the western portions of Washington and Oregon to southern California . It is generally restricted to the west side of the Sierra Nevada-Cascade crest . Bigleaf maple's northern distribution is apparently restricted by cold temperatures. Its southern and interior distribution seems restricted by insufficient moisture and humidity . At the southern end of its range, bigleaf maple is usually restricted to canyons or riparian habitats .

Bigleaf maple occasionally forms pure stands on moist soils near streams, but trees are generally found in riparian hardwood forests or scattered under or within relatively open canopies of conifers, mixed evergreens, or oaks (Quercus spp.). Bigleaf maple most often occurs in - Sitka spruce (Picea sitchensis)-western hemlock (Tsuga heterophylla) old growth forests of the Olympic rain forest - Douglas-fir (Pseudotsuga menziesii), grand fir (Abies grandis), or redwood (Sequoia sempervirens) forests - Mixed evergreen forests dominated by Douglas-fir, tanoak (Lithocarpus densiflora), Pacific madrone (Arbutus menziesii), chinkapin (Castanopsis chrysophylla), coast live oak (Quercus agrifolia), Californi live oak (Q. chrysolepis), Jeffrey pine (Pinus jeffreyi), sugar pine (P. lambertiana), or ponderosa pine (P. ponderosa) - Oregon white oak (Q. garryana) woodlands - Deciduous or mixed deciduous/coniferous riparian forests dominated by red alder (Alnus rubra), white alder (A. rhombifolia), Oregon ash (Fraxinus latifolia), quaking aspen (Populus tremuloides), black cottonwood (Populus tricocarpa), willows (Salix spp.), or Douglas-fir Published classification schemes listing bigleaf maple as a dominant part of the vegetation in community types (cts) or plant associations (pas) are presented below: Area Classification Authority WA: North Cascades NP Forest Cover Types Agee and Kertis 1987 nw OR: Tillamook Burn postfire cts Bailey & Poulton 1968 OR, WA general veg. cts Franklin & Dyrness 1973 CA redwood forest cts Zinke 1977 CA, OR: Siskiyou Mtns general veg. pas Atzet and Wheeler 1984

Some of the information provided here is attributed to:Uchytil, Ronald J. 1989. Acer macrophyllum. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). , available at the USDA Fire Effects Information System (FEIS) website