Larch
The
Abies Procera is commonly known as
Larch,
Noble Fir,
Red Fir, as well as
White Fir< Go BackGrowing Regions
Noble fir occurs in the Cascade Range from Stevens Pass, Washington,
south to southern Oregon and the Klamath Mountains in northern Calfornia
[
17,
18,
22,
31,
34]. Scattered populations occur on isolated peaks in the
northern Coast Ranges of Oregon and in the Willapa Hills of southwestern
Washington [
17,
18,
34]. A few sources indicate that noble fir does not
occur in the Olympic Mountains [
17,
22]. It is cultivated in Hawaii [
50].
General Information
The currently accepted scientific name of noble fir is Abies procera
Rehd. [
31,
34]. There are no recognized varieties or subspecies.
Noble fir hybridizes readily with California red fir (Abies magnifica)
[
22,
34]. Populations in southern Oregon and northwestern California may
represent hybrid swarms between these two species [
22]. Noble fir
occurring south of the McKenzie River is not genetically pure [
17].
Noble fir is often dominant in young, mixed stands [21]. It occurs
primarily in the Pacific silver fir (Abies amabilis) zone [15,17] and
less frequently in the western hemlock (Tsuga heterophylla) and mountain
hemlock (T. mertensiana) zones [17,19]. Noble fir occurs with
Douglas-fir (Pseudotsuga menziesii) and replaces it in the upper half of
the Pacific silver fir zone [15]. Occasionally, noble fir occurs in
small pure stands [17].
Noble fir is listed as a minor or associated species in the publications
listed below:
Plant association and management guide for the Pacific silver fir zone,
Gifford Pinchot National Forest [4]
Natural vegetation of Oregon and Washington [15]
The forest communities of Mount Rainier National Park [20]
Plant association and management guide for the Pacific silver fir zone,
Mt. Hood and Willamette National Forests [28]
Plant association and management guide, Suislaw National forest [29]
Terrestrial natural communities of California [32]
Montane and subalpine vegetation of the Klamath Mountains [39]
Much of the information presented here is attributed to:
Cope, Amy B. 1993. Abies procera. In: Fire Effects Information System, [Online].
U.S. Department of Agriculture, Forest Service,
Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.
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