The pale green shub-like growths hanging from trees in the forests around Whistler is called usnea. These bushy, coral-like fruticose lichens anchor to bark and branches on trees and hang like tinsel on a Christmas tree. known as old man’s beard, usnea tends to thrive on dead and dying trees and is can appear to be harming their hosts. They actually do no harm to trees and prefer dying ones for their lack of sunlight blocking canopy growth.
Usnea need sunlight for photosynthesis and clean, unpolluted air to grow well. Air pollution significantly hinders their growth, especially sulfur dioxide. In heavily polluted environments growth is measured in millimetres, in good environments like Whistler and Garibaldi Park, they tend to grow 10 to 20 centimetres long. When you encounter forests with plentiful usnea draped over branches, you have found a bioindicator that the region has high quality, clean air. Many of Whistler area hiking trails pass through sections of forest with astounding amounts of usnea hanging from branches. Usnea is slow growing and is able to endure long periods of hot dry weather. Sections of the Brew Lake and Newt Lake trails, for example, have rocky, exposed ridges with very little soil covering the bedrock. These areas are frequently starved of water and the hardy trees that survive are desiccated and sickly looking. These are great environments for usnea to grow and give these sections of brutalized trees a strangely haunting appearance. Usnea has antibiotic properties and is effective to treat skin infections. When applied to wounds, usnea appears to fight infection and speed up the healing process. It is simply pulled from a tree, moistened with water and held against the wound. The active component is usnic acid and according to Paul Bergner, in his book Medical Herbalism, its antibacterial properties have shown to be effective against staphylococcus bacteria, streptococcus bacteria and even a bacterium that commonly causes pneumonia.
More Whistler & Garibaldi Park Hiking A to Z!
Cornice: a wind deposited wave of snow on a ridge, often overhanging a steep slope or cliff. They are the result of snow building up on the crest of a ...
Bivouac or Bivy: a primitive campsite or simple, flat area where camping is possible. Traditionally used to refer to a very primitive campsite comprised of ...
Green Lake is the marvellously vivid, green coloured lake just north of Whistler Village. Driving north on the Sea to Sky Highway, Green Lake appears ...
Mills Winram was a very active mountaineer from Vancouver with some very notable ascents in the 1920's and 1930's. He, along with Fred Parkes and Stan ...
The Roundhouse Lodge is the centre of activity on much of Whistler Mountain. It is where the Whistler Gondola drops off and next to where the Peak 2 Peak ...
Aiguille: a tall, narrow, characteristically distinct spire of rock. From the French word for "needle". Used extensively as part of the names for many ...
Crevasse: is a split or crack in the glacier surface, often with near vertical walls. Crevasses form out of the constant movement of a glacier over ...
Ancient Cedars is a nice, easy/moderate 2.5 kilometre (1.6 mile) hiking trail on the far side of Cougar Mountain, just 13.1 kilometres north of Whistler Village. A small, untouched grove of huge western ...
Hiking and biking trails are so abundant in Whistler that many go unnoticed, neglected or taken for granted. The Flank Trail is one of these. Most people in Whistler don't even know about it, but the ones ...
Cheakamus Lake is a wonderfully relaxing way to get in the wilderness easily and quickly from Whistler Village. The trail begins on the far side of Whistler Mountain, 8 kilometres from the Sea to Sky Highway ...
Brandywine Meadows is a nice, relatively short hike to a massive flower filled valley high up in Callaghan Valley. Located 40 minutes south of Whistler, this tough and sometimes muddy trail gains a huge 550 ...
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 ...
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 ...
December hiking in Whistler is mainly done on snowshoes, though not always. If it hasn't snowed much recently then trails such as Whistler Train Wreck and ...
Hiking in Whistler is spectacular and wonderfully varied. Looking at a map of Whistler you see an extraordinary spider web of hiking trails that are unbelievably numerous. Easy trails, moderate trails and challenging hiking trails are all available. Another marvellous ...
Squamish is located in the midst of a staggering array of amazing hiking trails. Garibaldi Provincial Park sprawls alongside Squamish and up and beyond Whistler. Tantalus Provincial Park lays across the valley to the west and the wonderfully remote Callaghan Valley ...
Clayoquot Sound has a staggering array of hiking trails within it. Between Tofino and Ucluelet, Pacific Rim Park has several wilderness and beach trails, each one radically different from the last. The islands in the area are often Provincial parks on their own with ...
Victoria has a seemingly endless number of amazing hiking trails. Most take you to wild and beautiful Pacific Ocean views and others take you to tranquil lakes in beautiful BC Coastal Rainforest wilderness. Regional Parks and Provincial Parks are everywhere you turn in ...
The West Coast Trail was created after decades of brutal and costly shipwrecks occurred along the West Coast of Vancouver Island. One shipwreck in particular was so horrific, tragic and unbelievable that it forced the creation of a trail along the coast, which ...
The pale green shub-like growths hanging from trees in the forests around Whistler is called usnea. These bushy, coral-like fruticose lichens anchor to bark and branches on trees and hang like tinsel on a Christmas tree. known as old man’s beard, usnea tends to thrive on dead and dying trees and is can appear to be harming their hosts. They actually do no harm to trees and prefer dying ones for their lack of sunlight blocking canopy growth. 
Alexander Falls 
Ancient Cedars 
Black Tusk 
Blackcomb Mountain 
Cheakamus River 
Cirque Lake 
Sproatt East 
Wedgemount Lake 
January 
March 
June 
September 
