a aspen poplar should be about 25-40 meters tall
Cooler parts (or higher elevations) of the northern hemisphere.
Aspen is a poplar tree. They typically grow tall, and have white bark. There is also a city named Aspen, Colorado.
A quaking aspen tree is a type of poplar tree, it is not a conifer.
An aspen is a kind of poplar tree of the genus Populus sect. Populus, or the wood of such a tree.
Trembling Aspen
Curtis L. Brown has written: 'Constitution and pulping of aspen and poplar woods' -- subject(s): Bibliography, Wood-pulp, Aspen, Poplar, Paper industry
Quaking aspen, also known as poplar
Aspen, fir, Poplar, Spruce, and many more
Aspen and poplar forests or rather, deciduous forests. There's always a transition zone of spruce and deciduous (which include aspen and poplar trees) before going right to straight deciduous/hard-wood forests.
eastern fir, Canadian balsam, blister fir, birch, poplar, and aspen
Poplar trees have around 30 species, the most popular English names are Cottonwood, Aspen, Poplar, for more information: Please see related link below.