Northern Ontario Plant Database
Northern Ontario Vegetation Type (V-type)
Summary: A conifer stand dominated by white pine, with a variety of other conifer species occurring less frequently in the canopy. Regeneration is dominated by balsam fir. The shrub layer is dominated by mountain maple and beaked hazel, although bush honeysuckle may occasionally be abundant. In the Quetico/Rainy River area, red maple regen and common juniper may be prominent in the understorey.
The herb layer is relatively poor; it is dominated by wild sarsaparilla and largeleaf aster, and contains most of the characteristic boreal forest species, but lacks starflower and bluebead lily. Rock polypody may occur on rocky sites. The forest floor is covered with mainly conifer (pine needle) litter, though some patches of feathermoss can be found.
The NW-V26 Vegetation Type is most similar to NW-V12 (White Pine Mixedwood), except that, in the latter type, white birch is very common in the canopy and other hardwood species may also be present. NW-V12 probably represents a successional stage of NW-V26.
Soil & Ecosite Types: The White Pine Conifer Vegetation Type (NW-V26) is found most commonly in the Quetico/Rainy River portions of northwestern Ontario. It occurs on Ecosite Types NW-ES 11 (Red Pine-White Pine-Jack Pine; very shallow soil), NW-ES 15 (Red Pine-White Pine; sandy soil), NW-ES 24 (Red Pine-White Pine; fresh, fine loamy soil), and sometimes NW-ES 18 (Red Pine-White Pine; fresh, coarse loamy soil). This vegetation type occurs on deep, dry to fresh, rapidly-drained, non-calcareous, coarse-textured, upland mineral soils (mainly S1, S2, S3) or on shallow soils with exposed bedrock (SS6).]
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:white pine (Pinus strobus) regeneration:
tall shrubs:Dwarf Shrubs & Herbs:mountain maple (Acer spicatum)low shrubs:
dwarf shrubs:Ferns & Fern Alliestwinflower (Linnaea borealis)forbs:
ferns:Bryophytes:common polypody (Polypodium virginianum)
Schreber's feathermoss (Pleurozium schreberi)