Friday, October 19, 2012

Western Redcedar - Thuja plicata

The Western Red cedar tree is what most people (at least in the Northwestern United States) refer to when they use the term "cedar". It is commonly used for fences and exterior siding because it can get wet without rotting.
It leaves and wood have a fairly strong and distinct aroma. This may be the source of the name "cedar" as this aroma is similar to the aroma of the true cedars (ie. Cedar of Lebanon).
I took the images in this post while on a recent trip to Washington state and Vancouver BC. The images above are from Berthusen Memorial Park in Lynden, Washington. The images of the two trees below are from Stanley park in Vancouver. I spent about four hours walking the trails of the park and observing the very large Western Red Cedars that can be seen throughout the park.
Due to a recent storm there were a great many trees that had been blown down and were being gradually removed park service crews. It was a pity to see even some of the very old giants lying on the ground. Another interesting sight in the park are the "nurse logs". These are logs or stumps that have decomposed and have smaller trees growing on top of them and benefiting from their nourishment.
The BIG stump in the picture below is found at a rest area along Interstate 5 north of Seattle but south of Arlington. It is all that remains of a giant Western Red Cedar that grew in the area before it was killed by a fire in 1893. The stump of this tree is 20 feet across at the base.

Huge Cedar Stump near I-5 north of Seattle Washington


The following text is from the sign near this big Cedar stump…
Big Cedar Stump
This famous stump remains as evidence of the giant trees which once forested this aea. Over 20 feet in diameter and 200 feet tall, the huge “Western Redcedar” is believed to have been more than 1000 years old. Discovered by early settlers of the area, the following is a resume of its recorded history:
1893 – the stump was killed by a fire which started in its hollow base.
1916 – After the top was removed, Paul Wangsmo and Ole Rodway cut and chopped three spines from the core and cut archways through the stump.
1922 – After cutting the stump off at its base, Ole Reinseth and Slim Husby used horse teams to drag it north 150 yards where it was set on a concrete base.
1939 – the stump, by now cracked, was taken apart and pieced back together just north of portage creek, alongside the newly completed U.S. 99. One May 27, crown prince Olav and princess Martha of Norway drove through the stump.
1971 – The stump´s final move braught it here.




Atlas Cedar - Cedrus atlantica

A few weeks ago I was able to visit Stanley Park in Vancouver BC. While walking around the park I came across a large Atlas Cedar tree (above). A small label on the tree identified the species as "Cedrus atlantica". Some sources however classify this tree as a subspecies of the Cedar of Lebanon "Cedrus Libani var. atlantica".

The image above illustrates how the short needles of the Atlas Cedar grow on small "rosettes" (small clusters of needles on the end of a short stem). It is very difficult to distinguish between this tree and its close cousin the Lebanese Cedar due to the fact that they have approximately the same number of needles per rosette and and the needles are the same length. The needle length is about 3/4 of an inch (2cm) with about 30 needles per rosette.

The seed cones of the Atlas Cedar stand upright on the branches much like fir cones. They are about 3-3.5 inches tall and 2-2.5 inches wide.

One curious thing about these cones is their habit of breaking off at the top when they start to disintegrate. It is quite common to find the tops of the cones are the ground that look like little dried roses.
The pollen cones are smaller with a shape quite similar to other evergreen trees.


Yakusugi Cedar - Cryptomeria japonica

The Cryptomeria japonica is an evergreen tree native to Japan where there are many very old examples of this species that are revered as sacred trees. I found this tree however in Vancouver, British Columbia (Canada) in Stanley Park. Most of this park is virgin old growth timber but on one side of the park (the part closest to the city) there is a section where a good many exotic species of trees were planted long enough ago that they are now very large.

I was at first quite puzzle by this tree as it looked very different from any other evergreen I had seen before. A gardener was working nearby and upon inquiring about the tree we found out its scientific name.
As you can see from the pictures this tree was loaded with both pollen and seed cones.

I believe the name "Yakusugi" comes from the fact that this tree is native to Yakushima Island in Japan and that "sugi" is the Japanese for cedar.
The bark was similar to that of a Western Red Cedar.

Cherry tree blossoms in full bloom - Laurelhurst park

This is the time of year when Cherry trees burst into full color with their extravagant blossoms. In some countries, such as Japan and China, observing Cherry trees in bloom is almost a national pastime. These images come from a Cherry tree that I found a few weeks ago in Laurelhust park (Portland Oregen).

The day was a bit overcast and it was about an hour and a half before sunset so the sunlight was not overhead. The tree was also shaded by some rather large Sequoias and Douglas fir tree which made for a pretty soft light.

Portland, Oregon has a number of great park similar to Laurelhurst of which my favorite is Mount Tabor park, located near 60th and Yamhill in southeast Portland.

Coastal Redwood tree - Sequoia sempervirens

The main claim to fame for the Coastal Redwood (also called the California Redwood) is that it is the tallest tree species in the world, with the tallest actual tree being 379 feet tall. This tree species should not be confused with the Giant Sequoia, which is the largest (by volume) tree species in the world. Both the Coastal Redwood and the Giant Sequoia are native to the Pacific coast of North American in California and Oregon.

The seed cone of the Coastal redwood is quite a bit smaller than its Giant Sequoia counterpart measuring about 2 cm long (just under one inch). The cone has a similar look to those of the Cypress Sempervirens.

The "leaves" of the Coastal Redwood are very different from those of the Giant Sequoia. They are needle-like and flat, measuring about half an inch long. The branch structure can be clearly seen in the image below.

The bark of the California Redwood is quite thick, has a reddish color and quite fibrous.

Saucer Magnolia tree - Magnolia x soulangiana

There is a botanical garden a short distance from where I work that I sometimes go for a walk in. I was there for a short time today and to my surprise I came across a Saucer Magnolia just coming into flower.

I have been though the garden many times but today was the first time that I have taken notice of this tree. Had I known that it was there I´m sure that I would have been on the lookout for it. As it was I almost missed it as I walked by. Something caught my eye however and when I looked over I saw the new flowers (top two images)

These next two images are not from the same tree but rather are pictures that my sister sent me of a tree that she saw one day on her way to work last year. I´m pretty sure that they are the same species although there might be a slight cultivar difference.
This tree is in the same genus as the Southern Magnolia.
Click here for a fantastic sequence of images of the Magnolia Grandiflora opening.