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!
Every unusual phenomenon in the forest seems to have a name, but one natural work of art seems to be without a commonly used name. Big trees with ...
Adjacent to the huge Caterpillar tractor in Parkhurst is a large disintegrating wooden dock that is a great place to take in the wonderful view of Green ...
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 ...
The Cordilleran Ice Sheet covered most of north-west North America for much of the last 2.6 million years. At the Last Glacial Maximum during the Last ...
Whistler Bungee Bridge, also known as the Cheakamus Bungee Bridge is a very convenient and beautiful attraction on the way to or from Whistler from ...
Inosculation is the technical name for two or more trees that have fused together into a single bizarre looking tree. They are colloquially known as ...
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 ...
The Table is an extraordinary flat-topped mountain located in Garibaldi Park just one kilometre south of Garibaldi Lake. Sometimes reflexively referred to as ...
Whistler has an absurd number of wonderful and free hiking trails and Parkhurst Ghost Town certainly ranks as the most unusual and interesting. Parkhurst was a little logging town perched on the edge of Green ...
Keyhole Hot Springs (aka Pebble Creek Hot Springs) is located 100 kilometres from Whistler (Village Gate Blvd). Though much of the drive to Keyhole is on logging roads, the route is driveable by most cars ...
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 ...
Callaghan Lake Park is a relatively untouched wilderness of rugged mountainous terrain. The valley walls were formed by relatively recent glaciation. Evidence of this can be seen in the considerable glacial ...
April in Whistler is a wonderful time of year. The winter deep freeze ends and T-shirt weather erupts. The village comes alive with overflowing patios and ...
May is an extraordinarily beautiful time of year in Whistler. The days are longer and warmer and a great lull in between seasons happens. Whistler is fairly quiet ...
June is a pretty amazing month to hike in Whistler and Garibaldi Park. The average low and high temperatures in Whistler range from 9c to 21c(48f/70f). ...
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 
