Thursday, August 27, 2015

Abies Grandis – Grand Fir

General Information
Common Name Grand Fir
Scientific Name Abies Grandis
Sun Tolerance Full Sun
Height 40 - 70 m (135 - 230 ft)
Spread 10 -15 m (33 - 50 ft)
Growth Rate Fast
Bloom Time Spring
Color Green,
Flower Color Yellow
Type Tree
Native USA, Asia, Europe.
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
SuperdivisionSpermatophyta – Seed plants
Division Coniferophyta – Conifers
Class Pinopsida
Order Pinales
Family Pinaceae – Pine family
Genus Abies Mill. –  Fir
Species A. Grandis

Abies Grandis – Grand Fir
Abies Grandis commonly known as Grand Fir also called by its botanical name of ‘grandis,’ is a tall rapidly-growing silver fir, introduced from the Pacific coast of North America. It has many more name like as Lowland White Fir, Great Silver Fir, Western White Fir, Vancouver Fir, or Oregon Fir.
It is an evergreen long tree. The tree generally grows to 40–70 m (135 – 230 ft) in height. The new shoots are smooth and olive-green. The buds are small, blunt, and resin-coated. The needles are long (for firs), u to 2 inches, twisted at their base so as to spread in two ranks in one plane; the upper rank has the shorter needles. They have notched apices, and are glossy green above, with two prominent glaucous bands below. The new pale green needles, which appear in June, fringe the edges of all the branches, giving the tree its best appearance. When crushed, the scent is pleasantly aromatic. When pulled away from the stem they leave a neat round scar, not a peg.
Both sexes of flowers are found on the same tree. The small yellow male flowers are in clusters on the underside of the branches. The females are erect, short, scaly, and yellow-green, borne height up on the tree and are thus seldom seen. On fertilization they develop into erect cylindrical cones up to 4 inches long and an inch or more broad, and slightly indented at the apex. They ripen to a yellowish-green, and disintegrate in September leaving the persistent central spike on the tree.
The bark is smooth, with some blisters containing clear, aromatic resin. With age the bark becomes dark-brown, fissured and scaly. The branches are in whorls, often wide apart. The wood is white or pale cream in color, with no marked heart-wood. It is used for box making, paper-pulp, and for general purposes where strength and natural durability are not required. Sometimes a drought crack’ runs in spiral fashion up the stem. The bark has historical medicinal properties, and it is popular in the United States as a Christmas tree.
Foresters prize ‘grandis’ as ‘a fast and heavy volume-producer of moderately strong timber’ and as a useful under-plant. It can reach 40 m (130 ft) in fifty years.
The European Silver Fir, Abies alba Mill., usually fails in some countries of Europe because of attacks by tiny needle-sucking aphids, species of Adelges. Consequently it is not only planted for timber but also little tree for ornament. 

Abies Grandis – Grand Fir

Leaves of Grand Fir

Leaves of Abies Grandis

Abies Grandis Leaves

Grand Fir Leaves

Abies Grandis – Grand Fir

Male Catkins of Grand Fir

Female Cones of Grand Fir

Bark of Grand Fir

Logs of Grand Fir

Long Trunk of Grand Fir

Long Trunk of Abies Grandis 

Grand Fir as Christmas Tree

Abies Grandis Plantation as Christmas Trees

 Grand Fir for Christmas Trees

Abies Grandis for Christmas Trees

Abies Grandis – Grand Fir

Video of Grand Fir: 

Christmas Tree

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