Seward Wetland Mapping Project
Chugach National Forest Plant Community Descriptions
From: R.L. DeVelice, C.J. Hubbard, K. Boggs, S. Boudreau, M. Potkin, T. Boucher and C. Wertheim. 1999. Plant Community Types of the Chugach National Forest: southcentral Alaska. USDA Forest Service, Chugach National Forest, Alaska Region Technical Publication R10-TP-76. Anchorage, AK. 375pp. (download 3.5Mb .pdf)
Picea X lutzii-Populus balsamiferassp. trichocarpa/Alnus crispa sp. sinuata
(Lutz spruce-black cottonwood/Sitka alder)
(PICLUT-POPBALT/ALNCRIS; 9 sites)
IC1.-IC2. Closed and open mixed forest
A Sitka spruce - black cottonwood / Sitka alder stand on a Resurrection River terrace.
Vegetation- Picea X lutzii (Lutz spruce) and Populus balsamifera ssp.
trichocarpa(black cottonwood) codominate the tree layer. Alnus crispa ssp.
sinuata(Sitka alder) dominates the tall shrub layer. Echinopanax horridum
(devilís club) and Viburnum edule (highbush cranberry) are often present.
Low and dwarf shrubs are sparse. Calamagrostis canadensis (bluejoint
reedgrass) is the most consistent and dominant herbaceous species. Other
fairly consistent undergrowth species that are present include Epilobium
angustifolium(tall fireweed), Pyrola secunda (one-sided wintergreen), P.
asarifolia(liverleaf wintergreen), Streptopus amplexifolius (twistedstalk),
and Dryopteris dilatata (wood fern).
Physical setting- Lutz spruce-black cottonwood/Sitka alder is a common
type on flood plains in the Portage, Placer, and Twentymile wetland area. It
also occurs occasionally on non-disturbed foot slopes in the Kenai Mountains.
Sites sampled are on level ground at elevations below 300 feet.
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03 November 2006 12:13