About a dozen tree species are found in these areas although the only ones to reach tree size are tamarack, white and black spruce,
balsam poplar, quaking aspen and Alaska paper birch.
As an illustration of the interaction of such efforts, Chester identifies the
balsam poplar (Populus halsamifera) as the northernmost North American hardwood tree, and the range map accompanying her species account depicts general limits of where it is common (p.
(12) Stands of bur oak (Quercus macrocarpa) grew on higher ground while islands of trembling aspen (Populus tremuloides) and
balsam poplar (Populus balsamifera) dotted the open prairie (see Table 2).
Rare species were alder, mountain ash,
balsam poplar, and white pine (Table 5).
Bear Mountain Wind Park is on a northwest- to southeast-oriented ridge at 920 to 970 m elevation in deciduous woodland dominated by Quaking Aspen (Populus tremuloides) with some
Balsam Poplar (Populus balsamifera) and White Spruce (Picea glauca).
There also stands with
balsam poplar, a species for which there is little or no commercial market.
The objective of this research was to compare the papermaking properties of kraft and mechanical pulps derived from four hybrid poplars to the same properties of pulps derived from aspen and
balsam poplar. All of the poplars were harvested in close proximity to each other.
White spruce forests--quilted with black spruce, aspen,
balsam poplar and birch and stitched with black pine--still cover the Yukon below the tree line.
Although sea buckthorn, white poplar and
balsam poplar have all been planted to create shelter belts or stabilise this habitat, it is the mar ram grass that is the key on this coast.
The larvae feed on a large number of host plants, including some trees that may be found in prairie gardens (trembling aspen,
balsam poplar, white birch, wild cherry, green ash, Manitoba maple, apple, and mountain ash).
The average is also lower than those given for the cottonwoods:
balsam poplar, black, and eastern, which have MOEs of 7,580 MPa, 8,760 MPa, and 9,450 MPa, respectively.