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Plate 85.--Classification:
SYSTEM Palustrine,
CLASS Forested Wetland,
SUBCLASS Needle-leaved Evergreen,
DOMINANCE TYPE Picea mariana,
WATER REGIME Saturated,
WATER CHEMISTRY Fresh,
SOIL Mineral.
Subordinate plants in this black spruce forest
include Labrador tea (Ledum groenlandicum),
mountain cranberry (Vaccinium vitis-idaea),
crowberry (Empetrum nigrum), and peat moss
(Sphagnum sp.). Permafrost is present within 45
cm (18 in) of the surface. (Vicinity of
Glennallen, Alaska; July 1985; Photo by F. C.
Golet)
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