Northern Ontario Plant Database
Northern Ontario Vegetation Type (V-type)
Summary: A mixedwood stand dominated by black spruce in the canopy, with white birch and'or jack pine often occurring as associates. Trembling aspen and balsam fir occurred with less frequency (10-30%) in sample plots. Black spruce dominates the regeneration. The relatively poor shrub layer is dominated by low, ericaceous shrubs, including blueberries and Labrador tea, though mountain alder may be abundant on some sites.
The herb layer is also species-poor, but contains a few dwarf shrubs, including creeping snowberry and twinflower, and as well as bunchberry and wild lily-of-the-valley. The forest floor is covered by a thick, nearly continuous carpet of feathermosses, with small patches of broadleaf and conifer litter.
Soil & Ecosite Types: The Black Spruce Mixedwood/Feathermoss Vegetation Type (NW-V20) can be found most commonly in the northern boreal regions of northwestern Ontario. It occurs on Ecosite Types ES 14 (Pine-Spruce Mixedwood, sandy soil) and ES 26 (Spruce-Pine/Feathermoss, fresh, fine loamy-clayey soil), and can be found on fresh to dry, coarse-textured, upland, mineral soils (including S1, S2, S6, and SS5).
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:black spruce (Picea mariana) regeneration:
tall shrubs:Dwarf Shrubs & Herbs:mountain alder (Alnus viridis subsp. crispa)low shrubs:velvetleaf blueberry (Vaccinium myrtilloides)
dwarf shrubs:Bryophytes:creeping snowberry (Gaultheria hispidula)forbs:
Lichens:Schreber's feathermoss (Pleurozium schreberi)
gray reindeer lichen (Cladina rangiferina)