Grand fir

Abies grandis

''Abies grandis'' is a fir native to the Pacific Northwest and Northern California of North America, occurring at altitudes of sea level to 1,800 m. It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range.

The tree typically grows to 40–70 m in height, and may be the tallest Abies species in the world. There are two varieties, the taller coast grand fir, found west of the Cascade Mountains, and the shorter interior grand fir, found east of the Cascades. It was first described in 1831 by David Douglas.

It is closely related to white fir. The bark has historical medicinal properties, and it is popular in the United States as a Christmas tree. Its lumber is a softwood, and it is harvested as a hem fir. It is used in paper-making, as well as construction for framing and flooring, where it is desired for its resistance to splitting and splintering.
Two Whitish Bands... ... of stomata on the needles’ underside. The terminal notches can also be recognized. Abies grandis,Abies grandisGrand fir,Canada,Fall,Geotagged

Appearance

The grand fir was first described by Scottish botanical explorer David Douglas, who in 1831 collected specimens of the tree along the Columbia River in the Pacific Northwest.

''Abies grandis'' is a large evergreen coniferous tree growing to 40–70 m tall and with a trunk diameter of up to 2 m. The leaves are needle-like, flattened, 3–6 cm long and 2 mm wide by 0.5 mm thick, glossy dark green above, and with two green-white bands of stomata below, and slightly notched at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so they all lie in two more-or-less flat ranks on either side of the shoot. On the lower leaf surface, two green-white bands of stomata are prominent. The base of each leaf is twisted a variable amount so that the leaves are nearly coplanar. Different length leaves, but all lined up in a flat plane, is a useful way to quickly distinguish this species. The cones are 6–12 cm long and 3.5–4.5 cm broad, with about 100-150 scales; the scale bracts are short, and hidden in the closed cone. The winged seeds are released when the cones disintegrate at maturity about 6 months after pollination.
Horizontally Spreading Branches... ... with no needles on the upper surfaces of the branches. This conifer is a Grand Fir although some “locals” call it a Balsam Fir which in reality grow wild east of the Rockies.

https://www.jungledragon.com/image/87470/slightly_notched_needles.html

The needles are slightly notched at the tip and the under side has two prominent white strips of stomata.

https://www.jungledragon.com/image/87471/two_whitish_bands.html


The young trunks have resin blisters that when broken exude a sticky sap that’s hard to remove from clothes. (Experiential evidence)
https://www.jungledragon.com/image/87472/resin_blisters.html
 Abies grandis,Abies grandisGrand fir,Canada,Fall,Geotagged

Uses

The inner bark of the grand fir was used by some Plateau Indian tribes for treating colds and fever. The foliage has an attractive citrus-like scent, and is sometimes used for Christmas decorations in the United States, including Christmas trees. It is also planted as an ornamental tree in large parks.

For medicine uses, The Okanagan-Colville tribe used it as a Strengthener's drug for a general feeling of weakness.

References:

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Status: Least concern
EX EW CR EN VU NT LC
Taxonomy
KingdomPlantae
DivisionPinophyta
ClassPinopsida
OrderPinales
FamilyPinaceae
GenusAbies
SpeciesA. grandis
Photographed in
Canada