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Woody > Abies > Abies lasiocarpa > Abies lasiocarpa

Abies lasiocarpa


Subalpine Fir or Rocky Mountain Fir




Origin:  Western North America; Yukon to Idaho.
Family
Pinaceae
Genus
Abies
Species
lasiocarpa
Category
Woody
Type
Tree (evergreen)
Pronunciation
USDA Hardiness Zone
5
Canadian Hardiness Zone
4 - 6a
RHS Hardiness Zone
H7
Temperature (°C)
-29 to -23
Temperature (°F)
-20 to -10
Height
20 m
Spread
2 m
Photographs
Description and Growing Information
Flowering Period
AprilMay
Landscape
This tree is useful as a windbreak.
Cultivation
It is very hardy and can handle many different types of soils. It is also a plant that can handle brief periods of drought fairly well, but will not endure such conditions for a long period of time.
Shape
It is wide spread but loosely conical in nature. It has a very tight cone shape at the top.
Growth
Slow
ID Characteristic
It is a large coniferous tree with deep green needles and spreading branches. It also has a tight conical tip.
Pests
No specific pests are known for this species.
Habitat
This tree grows all along the western coastline in high altitudes, such as the Rocky Mountain Range. It also grows from south Yukon to Idaho.
Bark/Stem Description
The bark on young trees is smooth, gray, and with resin blisters, becoming rough and fissured or scaly on old trees.
Flower/Leaf Bud Description
Buds are the same basic colour as the bark, and are very large and scaled.
Leaf Description
The leaves are flat, needle-like, 1.5 - 3 cm long, glaucous green above with a broad stripe of stomata and two blue-white stomatal bands below; the fresh leaf scars are reddish. They are arranged spirally on the shoot, but with the leaf bases twisted.
Fruit Description
The cones are erect, 6 – 12 cm long, dark blackish purple with fine yellow-brown pubescence, ripening brown and disintegrating to release the winged seeds in early autumn.
Colour Description
The tree is deep green in colour with similarly coloured flowers.
Propagation
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