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!
Wedge Creek cuts through the valley that separates Wedge Mountain and Blackcomb Mountain and empties into Green River near the north end of Green Lake. ...
Aiguille: a tall, narrow, characteristically distinct spire of rock. From the French word for "needle". Used extensively as part of the names for many ...
Alpine Zone or Alpine Tundra is the area above the treeline, often characterized by stunted, sparse forests of krummholz and pristine, turquoise lakes. Mount ...
Northair Mine is wonderful, hidden world high up in Callaghan Valley. It was a gold mine run by the Northair Group from 1976 until was abandoned in 1982 ...
If you make it to the summit of Wedge Mountain you will notice off in the distance a beautifully symmetrical mountain that stands out among the rest. ...
When hiking to Parkhurst Ghost Town, the first area you will encounter after you cross the disintegrating bridge over Wedge Creek is the wye. In railroad ...
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 ...
Jane Lakes are a very remote feeling set of lakes in the beautiful wilderness near Cheakamus Crossing. Consisting of three lakes, West Jane Lake, East Jane Lake and Little Jane Lake, they have a great ...
Panorama Ridge is easily one of the most amazing hikes in Garibaldi Provincial Park. The 15 kilometre(9.3 mile) hike from the trailhead at Rubble Creek to Panorama Ridge takes you through beautiful and deep ...
Black Tusk is the extraordinarily iconic and appropriately named mountain that can be seen from almost everywhere in Whistler. The massive black spire of crumbling rock juts out of the earth in an incredibly ...
Meager Hot Springs(aka: Meager Creek Hot Springs) is located 93 kilometres northwest of Whistler, was beautifully developed into gorgeous pools, with a caretaker and usage charge. At its height of ...
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 
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September 
