Northern Ontario Plant Database
Northern Ontario Vegetation Type (V-type)
Summary: A mixedwood stand type dominated by trembling aspen (21-40% cover) and black spruce (11-20% cover), and with a variety of other conifers and white birch providing up to 20% cover in fewer than 2/3 of the sample plots. The understorey is dominated by regeneration of balsam fir (11-20% cover) and black spruce (6-10% cover), indicating succession to a conifer stand type in the future. The low shrub layer is more consistent than the tall shrub layer, with bush honeysuckle providing the most cover (6-10%), followed by lowbush and velvetleaf blueberries (2-5% cover). Mountain maple, beaked hazel, showy mountain ash, serviceberries, and prickly wild rose may also be present.
The herb layer supports a moderate number of species, including the characteristic boreal forest species (each providing 2-10% cover each) and wild sarsaparilla (2-5% cover). In fewer than 2/3 of sample plots, largeleaf aster (6-10% cover), dwarf raspberry and goldthread (2-5% cover), as well as creeping snowberry, rose twisted-stalk, violets, and a variety of clubmosses may also occur in small numbers.
The forest floor has a layer of mixed deciduous and coniferous leaf litter, with scattered patches of Schreber's feathermoss (11-20% cover), plume moss (2-5% cover), with occasional, smaller patches of stairstep moss, Dicranum mosses, and common haircap moss.
Soil and Ecosite Types: The Trembling Aspen-Black Spruce-Herb Poor Vegetation Type (NE-V8) occurs mainly on fresh to moist, sandy to silty soils, including dry to fresh calcareous sandy soils (S2), dry to moist non-calcareous (acidic) sandy soils (S1, S3), and dry to moist acidic coarse loamy soils (S5, S7). This vegetation type (NE-V8) occurs on a variety of ecosite types, most commonly on ES 6c (Trembling Aspen-White Birch-Coarse Soil) and ES 3 (White Birch-Trembling Aspen-Black Spruce-Coarse Soil), but it may also occur on types ES 1r (White Spruce-White Birch-Very Shallow Soil-Species Rich), ES 5f and 5m (Black Spruce-Fine and Medium Soils), ES 6f (Black Spruce-Trembling Aspen-Fine Soil) ES 6m (Trembling Aspen-Black Spruce-Balsam Fir-Medium Soil), ES 7m and7c (Trembling Aspen-White Birch-Medium and Coarse Soils), ES9r (White Spruce-Balsam Fir-White Cedar-Moist Soil-Species Rich), ES10 (Trembling Aspen-Black Spruce-Balsam Poplar-Moist Soil), ES18 (Jack Pine-White Pine-Red Pine), and ES19 (White Pine-Red Pine-Mixedwood).
tall shrubsDwarf Shrubs & Herbs:
dwarf shrubsFerns & Fern Allies:
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.Schreber's feathermoss (Pleurozium schreberi)