Garibaldi Park Whistler A to Z: NunatukThe Pacific yew or western yew is a coniferous tree that grows in Whistler and along the coast from Alaska to California. The Pacific yew’s unique appearance stands out among other more numerous and commonly known trees. The trunk is often contorted in angular directions toward gaps in the forest canopy and the branches are extremely long and sinewy. Branches tend to stretch toward the light and needles tend to only grow near the ends where light is found.

Whistler & Garibaldi Hiking

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The Pacific yew a wonderfully exotic, jungle-like quality that contrasts to the uniformly vertical stands of western redcedarsDouglas-firs and western hemlocks that tend to grow nearby. Not only do Pacific yew trees tend to have powerfully elongated snake-like branches, but often have a trunk that appears to be several trees fused together. This feature is called fluting and is not unusual in Pacific yew trees as well as other rainforest trees adapting to unstable forests prone to flooding. The brightly coloured, crimson red bark on Pacific yew trees is yet another characteristic that catches your attention on many of Whistler’s beautiful hiking trails. Depending on time of day or weather will determine which colours you will see on a Pacific yew’s thin, peeling bark. Usually a variation of deep red, but other times you will see brown, purple, or even bright orange, vaguely comparable to arbutus trees! The range of colour is also due to the layer visible. The outer layer will be a duller purple or brown colour, while the inner layer of bark will be a much more vibrant, shiny and fresh looking deep red or purple.  Pacific yew trees have fairly easy to distinguish leaves/needles. Look for the dark green colour and the flat pattern of needles. Other trees in Whistler forests don't have such an organized flat pattern of similar length, dark green needles projecting from both sides of the twig in the same plane. The closest needle pattern you may find in another tree is on the western hemlock, however the flat pattern looks disorganized as the needles are of varying lengths. Also, the twig on the western hemlock is brown, whereas it is green on a Pacific yew.

Sprawling Pacific Yew Tree in Whistler

Yew Tree in Whistler

Amazing Pacific Yew Trees

Pacific yew trees generally have a lifespan of about 200 to 300 years, though some have been known to live over 400 years. Most don’t exceed 20 metres in height, however occasionally they have been known to grow to 30 metres (100 feet). The Pacific yew trees in Whistler almost entirely reside below the canopy of larger trees such as western redcedars, coast Douglas-firs and western hemlocks. Taxine alkaloids in all species of yew trees worldwide cause them to be extremely poisonous. The Pacific yew is the least poisonous variation of yew tree as it contains only minimal amounts of Taxine, though still quite dangerous. Moose and deer seem to be the only animals to be unaffected by Taxine alkaloids as they happily eat the needles without ill effect. In humans Taxine Pacific yew needles may lead to death by cardiogenic shock. For most animals, including humans, ingesting any part of a Pacific yew tree containing Taxine alkaloids will result in neurological damage resulting in convulsions, fasciculation and paralysis.

Pacific Yew Trees in Whistler Lunging Toward the Sun

Pacific Yew in Whistler

Pacific Yew Tree in Whistler

Pacific Yew Berries

The Pacific yew is the only conifer species that produces berries instead of cones. The red flesh of the berry is the only part of yew trees that does not contain significant amounts of Taxine, though the seeds contain plenty. Humans and most animals avoid eating the toxic berries however some birds manage to avoid a horrifically painful death by separating and discarding the toxic seeds and eating just the flesh of the berry.  In 1971 Paclitaxel was isolated from the bark of Pacific yew trees and used successfully to treat many types of cancer. Suddenly yew trees worldwide became valuable and it is estimated that six trees were killed to treat one cancer patient. Inevitably this slow growing tree was massively reduced in numbers and ended up being classed as endangered. In the early 1990's synthetic production of Paclitaxel was developed and the Pacific yew is no longer endangered.

Pacific Yew Trees in Whistler

Otzi the Iceman's Yew Bow

Yew wood is very strong, stiff and springy making it useful historically in weapons such as the English long bow, axes, tools, canoe paddles, and quite a lot more. Europe's oldest known natural human mummy Ötzi the Iceman died in the Otztal Alps over 5000 years ago, was carrying a bow and axe, both made of yew. The Latin word for yew tree is Taxus, which in turn was borrowed from the Scythian word Taxša which translates to both yew and bow.

Pacific Yew aka Wester Yew Trees in Whistler

How to Identify a Pacific Yew in Whistler

The brightly coloured bark on Pacific yew trees is probably the first thing you will notice. In the midst of other trees in a Whistler forest, Pacific yew trees stand out quite brightly. The purple/orange/deep red bark is very noticeable in a Whistler forest.

Pacific Yew Colourful Bark

Pacific Yew Colourful Bark

Pacific Yew Leaves/Needles

Identifying a Pacific yew by looking at the leaves/needles is pretty easy in a Whistler forest. Look for the dark green colour and the flat pattern of needles. Other trees in Whistler forests don't have such an organized flat pattern of similar length, dark green needles projecting from both sides of the twig in the same plane. The closest needle pattern you may find in another tree is on the western hemlock, however the flat pattern looks disorganized as the needles are of varying lengths. Also, the twig on the western hemlock is brown, whereas it is green on a Pacific yew. Pacific yew needles are also likened to bananas due to their slight curve and rounded shape. If you look very closely at Pacific yew needle you will notice each has a soft point at the end.

Pacific Yew Flat Needle Pattern

Pacific Yew Flat Leaves

The underside of a Pacific yew needle is concave and pale green in colour, much lighter than the dark green on the upper side. One typical feature that conifer needles tend to have is a white band along the length of the underside. Pacific yews don't have this white band and according to the excellent smartphone app Trees Pacific NW, "The absence of white bands is positive identification of Pacific yew."

Pacific Yew Needles Underside

Pacific Yew Leaves Under

Pacific Yew Pollen

Pacific Yew Pollen

Pacific Yew Berries

Pacific Yew Berrty

Pacific Yew Trees in Whistler

Pacific yew trees are fairly common in Whistler forests and once you spot one with its crimson red bark you will notice more and more. They are very hardy and don't mind fighting for sunlight near the forest floor. Emerald Forest in Whistler Cay is home to countless young and not-so-young Pacific yew trees. This expansive forest is also home to several large and interesting western redcedars, coast Douglas-firs, and quite a lot more.

Pacific Yew Forest in Whistler

Pacific Yew Tree in Whistler

More Whistler & Garibaldi Park Hiking A to Z!

Coast Douglas-fir trees are medium to extremely large trees that you will encounter in Whistler and Garibaldi Park. They are the second tallest conifer ...
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Waterbar and Cross-Ditch: the purpose of a waterbar or cross-ditch is to capture and redirect surface water from the road and channel it across the road ...
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The Spearhead Range is a subsection of the Garibaldi Ranges that runs in an arc that connects Whistler Mountain and Blackcomb Mountain.  The Spearhead ...
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Col: a ridge between two higher peaks, a mountain pass or saddle.  More specifically is the lowest point on a mountain ridge between two peaks.  Sometimes ...
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The Pacific yew or western yew is a coniferous tree that grows in Whistler and along the coast from Alaska to California. The Pacific yew’s unique ...
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Ablation Zone: the lower altitude region of a glacier where there is a net loss of ice mass due to melting, sublimation, evaporation, ice calving or ...
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The rocky and narrow row of islands in Garibaldi Lake just offshore from the Garibaldi Lake campsite are known as Battleship Islands.  Named by the ...
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Corrie Lake is the surreal looking lake that can be seen across the valley from Whistler Mountain.  While hiking the High Note trail along Whistler ...
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Amazing Hiking Trails in Whistler

The Best Whistler & Garibaldi Park Hiking Trails!

The Sea to Sky Trail is a 180 kilometre multi-use trail that runs from Squamish to D'Arcy. The trail is still under construction in many parts, however, the amazing route through Whistler is finally in ...
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Nairn Falls is a wonderful, crashing and chaotic waterfall that surrounds you from the deluxe viewing platform that allows you to safely watch it from above.  The beautiful, green water rushes through the ...
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Russet Lake is a surreal little paradise that lays at the base of The Fissile, in Garibaldi Provincial Park. The Fissile is the strikingly bronze mountain visible from Whistler Village.  From the Village ...
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Alexander Falls is a very impressive 43 metre/141 foot waterfall just 30 to 40 minutes south of Whistler in the Callaghan Valley. Open year-round and located just before Whistler Olympic Park where several ...
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Whistler & Garibaldi Park Best Hiking by Month!

September hiking in Whistler is possibly the best month of all.  The snow has melted far up to the mountain tops, yet the temperatures are still quite high.  ...
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Hiking in Whistler in October is often unexpectedly stunning.  The days are much shorter and colder but the mountains are alive with colour from the fall ...
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November in Whistler is when the temperatures plummet and the first heavy snow falls in the alpine and often in Whistler Village.  The hiking opportunities become ...
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December hiking in Whistler is mainly done on snowshoes, though if it hasn't snowed for a few days, trails to Whistler Train Wreck and Rainbow Falls can ...
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Free Camping Gear Delivery to Garibaldi Park

Explore BC Hiking Destinations!

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