Abstract for CNVC00091


Populus tremuloides – Picea glauca – Pinus contorta / Leymus innovatus

Trembling Aspen – White Spruce – Lodgepole Pine / Downy Lymegrass
Peuplier faux-tremble – Épinette blanche – Pin tordu / Élyme innovant

CNVC00091 is a boreal mixedwood forest Association that occurs in Alberta and British Columbia. It has a moderately closed canopy of trembling aspen (Populus tremuloides) with white spruce (Picea glauca) and/or lodgepole pine (Pinus contorta). The shrub layer is usually moderately developed and consists mainly of soapberry (Shepherdia canadensis) and prickly rose (Rosa acicularis). The herb and dwarf shrub layer is typically dense and has abundant downy lymegrass (Leymus innovatus) and common bearberry (Arctostaphylos uva-ursi) as well as lower cover of wild strawberry (Fragaria virginiana), cream-coloured vetchling (Lathyrus ochroleucus), northern bedstraw (Galium boreale), twinflower (Linnaea borealis) and rayless alkali aster (Symphyotrichum ciliolatum). The forest floor cover is mainly broad-leaf and grass litter, so the moss layer is sparse. CNVC00091 occurs on mesic, nutrient-medium sites in a region with a subhumid continental climate. It is an early to mid-successional condition that typically establishes after fire.