Abstract for CNVC00213


Populus tremuloides – Betula papyrifera – Picea mariana – Pinus banksiana / Diervilla lonicera / Pleurozium schreberi

Trembling Aspen – Paper Birch – Black Spruce – Jack Pine / Northern Bush-honeysuckle / Red-stemmed Feathermoss
Peuplier faux-tremble – Bouleau à papier – Épinette noire – Pin gris / Dièreville chèvrefeuille / Pleurozie dorée

CNVC00213 is a boreal mixedwood forest Association that ranges from Manitoba to Quebec. It has a closed canopy of trembling aspen (Populus tremuloides) and/or paper birch (Betula papyrifera), with black spruce (Picea mariana) and/or jack pine (Pinus banksiana). The shrub layer is well developed and includes a mix of regenerating tree species, especially black spruce and balsam fir (Abies balsamea), as well as the low shrub species northern bush-honeysuckle (Diervilla lonicera), velvet-leaved blueberry (Vaccinium myrtilloides) and early lowbush blueberry (V. angustifolium). The herb layer is moderately developed and commonly includes bunchberry (Cornus canadensis), wild lily-of-the-valley (Maianthemum canadense), twinflower (Linnaea borealis), yellow clintonia (Clintonia borealis), wild sarsaparilla (Aralia nudicaulis) and northern starflower (Lysimachia borealis). The moss layer is poorly to moderately developed, depending on the amount of broad-leaf litter on the forest floor. It is dominated by feathermosses, particularly red-stemmed feathermoss (Pleurozium schreberi). CNVC00213 is an early seral condition that typically establishes after fire or harvesting. It occurs mainly in a region with a continental boreal climate that grades from subhumid in the west to humid in the east and is most frequently found on mesic, nutrient-medium sites. Two subassociations are distinguished, typic and Pteridium aquilinum.