Abstract for CNVC00080


Populus tremuloides – P. balsamifera / Lonicera involucrata – Cornus stolonifera / Rubus pubescens

Trembling Aspen – Balsam Poplar / Bracted Honeysuckle – Red-osier Dogwood / Dwarf Raspberry
Peuplier faux-tremble – Peuplier baumier / Chèvrefeuille involucré – Cornouiller stolonifère / Ronce pubescente

CNVC00080 is a boreal hardwood forest Association that ranges from British Columbia to western Manitoba. It has variable canopy cover, from open to closed, comprising mainly trembling aspen (Populus tremuloides) and/or balsam poplar (P. balsamifera) sometimes with paper birch (Betula papyrifera) as an associate. The understory is relatively species rich, with well-developed shrub and herb layers. Prickly rose (Rosa acicularis), squashberry (Viburnum edule), bracted honeysuckle (Lonicera involucrata), and red-osier dogwood (Cornus stolonifera) are common in the shrub layer. Green alder (Alnus viridis) and/or mountain alder (A. incana) may be dominant on some sites. Bluejoint reedgrass (Calamagrostis canadensis) and wild sarsaparilla (Aralia nudicaulis) can be abundant in the herb and dwarf shrub layer. This layer typically also includes dwarf raspberry (Rubus pubescens), fireweed (Chamerion angustifolium), arctic sweet coltsfoot (Petasites frigidus), bunchberry (Cornus canadensis), tall bluebells (Mertensia paniculata), cream-coloured vetchling (Lathyrus ochroleucus) and pink pyrola (Pyrola asarifolia). Broad-leaf and grass litter typically covers the forest floor, so mosses are virtually nonexistent. CNVC00080 occurs in a region with a subhumid continental boreal climate. It is found on moist to mesic, nutrient-rich to medium sites; these are among the most productive sites in the region. It is an early seral condition that typically establishes after stand-replacing fire or harvesting.