Northern Ontario Plant Database
Northern Ontario Vegetation Type (V-type)
Summary: A species-rich mixedwood stand dominated by trembling aspen (21-40% cover) and black spruce (11-20% cover), with balsam fir present in less than 2/3 of sample plots and providing less than 10% cover. Regeneration is primarily balsam fir (11-20% cover), with lesser amounts of black spruce and trembling aspen (2-5% cover), indicating succession to a balsam fir stand.
Bush honeysuckle (11-20% cover) and bristly wild rose (2-5% cover) provide the most cover in the understorey, but a moderate number of other shrub species occur in fewer than 2/3 of the sample plots, including speckled alder (6-10%), serviceberries, Canada fly honeysuckle, red osier dogwood, currants, squashberry, and wild red raspberry, each contributing no more than 5% cover.
The herb layer is dominated by largeleaf aster (11-20% cover), dwarf raspberry and wild sarsaparilla (6-10% cover), and naked mitrewort, bluebead lily, violets, sweet coltsfoot, and the characteristic boreal forest species, each providing 2-5% cover. A variety of other species may occur, but provide only 1% cover or occur on fewer than 2/3 of sample plots. A few pteridophytes occur occasionally, but when present, these provide only 1-5% cover.
The forest floor is predominantly of deciduous leaf litter, but a fair number of feathermosses are present, including shaggy moss (6-10% cover), Schreber's feathermoss (2-5% cover), and lesser amounts of plume moss and stairstep moss.
Soils and Ecosite Types: The Trembling Aspen-Black Spruce-Bush Honeysuckle-Herb Rich Vegetation Type (NE-V11) occurs mainly on rich, fresh to moist, fine loamy to clayey soils (S13, S14), as well as shallow, moist black organic soils (S15). This vegetation type may occur on ecosite types ES 6f (Black Spruce-Trembling Aspen-Fine Soil) and ES 6m (Trembling Aspen-Black Spruce-Balsam fir-medium soil), and ES 10 (Trembling Aspen-Black Spruce-Balsam Poplar-Moist Soil).
overstoreyShrubs:trembling aspen (Populus tremuloides) regeneration
tall shrubsDwarf Shrubs & Herbs:speckled alder (Alnus incana subsp. rugosa)low shrubs
dwarf shrubsFerns & Fern Allies:
shaggy moss (or electrified cat's-tail) (Rhytidiadelphus triquetrus)Note: Species listed above are taken from the Vegetation type description and the Species Percentage Cover by Vegetation Type Tables (pg. D 34). Species are listed in order of most cover and abundance.