Northern Ontario Plant Database
Northern Ontario Vegetation Type (V-type)
Summary: A mixedwood stand dominated by trembling aspen and black spruce, with jack pine and white birch occurring less frequently in the canopy. Regeneration is composed of black spruce, trembling aspen, and balsam fir. The shrub layer is dominated by low, ericaceous shrubs, such as blueberries and Labrador tea, although bush honeysuckle and mountain alder will also occur and are occasionally abundant.
The herb layer is dominated by the characteristic boreal forest species, wild sarsaparilla, and goldthread. The presence of kidneyleaf violet would indicate calcareous soils or substrates. The forest floor is composed of fairly equal amounts of broadleaf litter and extensive patches of feathermosses. Sites with dense shrub cover and significant amounts of wild sarsaparilla and bunchberry would support less feathermoss cover and resemble V-type NW-V10.
Soil & Ecosite Types: The Trembling Aspen-Conifer/Blueberry/Feathermoss Vegetation Type (NW-V11) is most commonly found in the Central Plateau region of NW Ontario, on ecosite types ES 16 (Hardwood-Fir-Spruce Mixedwood, sandy soil), ES 19 (Hardwood-Fir-Spruce Mixedwood, fresh, sandy-coarse loamy soil), ES 28 (Hardwood-Fir-Spruce Mixedwood, fresh, silty soil), ES 29 (Hardwood-Fir-Spruce Mixedwood, fresh, fine loamy-clayey soil). NW-V11 occurs on deep, dry to fresh, rapidly drained, coarse-textured mineral soils (mainly S1, S2, and S3).
Note: The percentage of sample plots that contained overstorey tree species is given in square brackets after each scientific name. Other species are listed in order of frequency, according to the NW-FEC manual.
overstorey:Shrubs:trembling aspen (Populus tremuloides) regeneration:
tall shrubs:Dwarf Shrubs & Herbs:serviceberries (Amelanchier spp.)low shrubs:
dwarf shrubs:Ferns & Fern Allies:twinflower (Linnaea borealis)forbs:
clubmosses:Bryophytes:running clubmoss (Lycopodium clavatum)
Lichens:Schreber's feathermoss (Pleurozium schreberi)
gray reindeer lichen (Cladina rangiferina)