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Fir

life science Maturity 5-7 Next article →

Firs are tall evergreen trees that belong to the genus Abies. These trees are very important members of the pine family. You can find them growing on mountains across much of the Northern Hemisphere. They live in North and Central America, Eurasia, and North Africa. Most fir species prefer to live in cold climates. Some grow as far north as 67 degrees N in Siberia. Others grow as far south as 15 degrees N in Central America.

Red fir
Red fir

Firs have a very specific way they grow. They often have one straight trunk that reaches huge heights. Some trees can grow between 40 and 60 metres tall. Some even approach 100 metres in height. Their leaves are shaped like needles and grow in a spiral pattern. Each needle has a round base that sits in a small pit on the twig. The leaves are often twisted so their breathing parts face downward.

Abies fabri in mist
Abies fabri in mist

One of the best ways to spot a fir is by its cones. These cones are cylindrical and stand upright on the branches. They look much like little candles sitting on a limb. The female cones take one year to become mature. They start out green or bright colors and turn dark brown or black. When they are ready, the cones disintegrate to release seeds. Each seed has a small, triangle-shaped wing to help it fly on the wind.

Abies alba - Köhler–s Medizinal-Pflanzen-001
Abies alba - Köhler–s Medizinal-Pflanzen-001

Scientists have studied these trees for a long time. Philip Miller set up the genus Abies in 1754. He also defined the type species known as Abies alba. Many other botanists like George Engelmann and Heinrich Mayr worked on them later. Fossil records show that firs have been around for a very long time. The oldest pollen from this group is from the Late Cretaceous period in Siberia. There are also fossils of leaves from the Early Eocene era.

Abies milleri SR 87-52-02 A
Abies milleri SR 87-52-02 A

Humans use fir trees for many different things. The wood is a softwood used to make paper and plywood. Some species like the Fraser's fir make popular Christmas trees. These trees have a nice smell and keep their needles well. Other firs are grown as decorative garden trees because of their bright cones. Even artists have used them, like Lucas Cranach the Elder in 1510. He painted a famous picture using a fir tree.

Keteleeria cone and leaves
Keteleeria cone and leaves
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🖼️ Images & Media (10)
File:Abies milleri SR 87-52-02 A.jpg
Abies milleri SR 87-52-02 A.jpg
File:Cedrus BHL677922.jpg
Cedrus BHL677922.jpg
File:Flore des serres v17 111a.jpg
Flore des serres v17 111a.jpg
File:Nothotsuga cones and leaves.jpg
Nothotsuga cones and leaves.jpg
File:Tsuga cone and leaves.png
Tsuga cone and leaves.png
File:Keteleeria cone and leaves.jpg
Keteleeria cone and leaves.jpg
File:Abies alba - Köhler–s Medizinal-Pflanzen-001.jpg
Abies alba - Köhler–s Medizinal-Pflanzen-001.jpg
File:496 Pinus silvestris.jpg
496 Pinus silvestris.jpg
File:Abies fabri in mist.jpg
Abies fabri in mist.jpg
File:Red fir.jpg
Red fir.jpg
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