Balsam Fir (Abies balsamea)
Updated January 27th, 2023An evergreen conifer native to North America, and a late-successional species found in areas that have not been disturbed recently. The only fir found in the northeast.
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An evergreen conifer native to North America, and a late-successional species found in areas that have not been disturbed recently. The only fir found in the northeast.
A scrubby, fire-adapted pine that often grows in harsh conditions, such as dry, acidic, sandy or rocky soil.
A native pine of the southeastern US, growing as a pioneer species, preferring leached soils, more common on dry uplands but found in many conditions.
A long region of rugged mountains extending from northwest Montana through the border of Alberta and British Columbia.
A glaciated region of high mountains, forested slopes, and broad grassy valleys with a severe continental climate.
A rugged mountainous region mostly in central Idaho, mostly covered in coniferous forest with open scrubland at low elevations.
These species have only a small range of overlap, but can be easily confused in this region. Both can have yellow-green needles in bundles of three, and both can occur in sandy soil. They are easily distinguished by differences in cones, sprouting, needle length, and form. P. rigida is usually found in dry, barren, fire-prone habitats such as rock outcroppings or excessively-drained sands, whereas P. taeda is most likely on moist, rich sites, and on poorly-drained sites.
These pines are sometimes confused; both grow on wet, poorly-drained sites and have needles of roughly similar length. They are easily distinguished by bark and growth habit, and can also usually be distinguished by needle count and characteristics of fresh cones. P. taeda ranges farther north and is less fire-tolerant, whereas P. elliotti ranges farther south and is more fire-tolerant.
These two species are easily confused; both are tall and have dark green foliage and similar bark. They are easily told apart by needles and twigs, cones, and form. Both are widely planted in landscaping in Eastern North America, with Norway spruce more common. Norway spruce has widely established in the wild whereas Caucasian spruce has generally not done so. Both species are shade-tolerant; Norway spruce is more tolerant of poor drainage.