Garibaldi Park Whistler A to Z: UsneaThe 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. 

Whistler & Garibaldi Park

 Ablation Zone WhistlerAblation Zone  Accumulation Zone WhistlerAccumulation Zone  Adit Lakes WhistlerAdit Lakes  Aiguille Whistler & Garibaldi ParkAiguille  Alpine Zone Whistler & Garibaldi ParkAlpine Zone  ArborlithArborlith  Arete Whistler & Garibaldi ParkArête  A River Runs Through It WhistlerARRTI  Armchair Glacier, Garibaldi Park, WhistlerArmchair Glacier  The Barrier in Garibaldi ParkThe Barrier  Battleship Islands in Garibaldi LakeBattleship Islands  Bears in Whistler & Garibaldi ParkBears  Bench Geology WhistlerBench  Bergschrund or SchrundBergschrund  BivouacBivouac  Whistler Bungee BridgeBungee Bridge  Bushwhacking in WhistlerBushwhack  Garibaldi Park WhistlerCairn/Inukshuk  Garibaldi Park WhistlerCarter,Neal  Garibaldi Park WhistlerChimney  Garibaldi Park WhistlerCirque  Garibaldi Park WhistlerCloudraker  Garibaldi Park WhistlerCoast Douglas-fir  Garibaldi Park WhistlerCoast Mountains  Garibaldi Park WhistlerCol  Garibaldi Park WhistlerColumnar Jointing  Garibaldi Park WhistlerCordilleran  Garibaldi Park WhistlerCornice  Garibaldi Park WhistlerCorrie Lake  Garibaldi Park WhistlerCrevasse  Garibaldi Park WhistlerDalgleish,Alec  Garibaldi Park WhistlerDeadfall  Emerald Park in WhistlerEmerald Forest  Erratics in Garibaldi Park and WhistlerErratic  The Fissile in Garibaldi Park, WhistlerThe Fissile  Fitzsimmons Creek in WhistlerFitzsimmons Creek  Garibaldi Park WhistlerFitzsimmons Range  Garibaldi Park WhistlerFyles,Tom  Garibaldi Park WhistlerGaribaldi Ranges  Garibaldi Park WhistlerGaribaldi Volcanic Belt  Garibaldi Park WhistlerGemel  Garibaldi Park WhistlerGlacier Window  Garibaldi Park WhistlerGreen Lake  Garibaldi Park WhistlerHoary Marmot  Garibaldi Park WhistlerKrummholz  Lodgepole Pine Trees WhistlerLodgepole Pine  Glacier Moraines in Garibaldi Park WhistlerMoraine  Garibaldi Park WhistlerMt Garibaldi  Mount James Turner in Garibaldi Park, WhistlerMt James Turner  Mountain Hemlock Garibaldi Park WhistlerMountain Hemlock  Northair Mine in WhistlerNorthair Mine  North Arm FarmNorth Arm  Nunatuks in Whistler and Garibaldi ParkNunatuk  Nurse Stump or Log in WhistlerNurse Stump  Overlord Mountain and GlacierOverlord  Garibaldi Park WhistlerPacific Yew  Garibaldi Park WhistlerPaper Birch  Garibaldi Park WhistlerPeak 2 Peak  Garibaldi Park WhistlerRainbow Lodge  Garibaldi Park WhistlerRoundhouse  Garibaldi Park WhistlerRubble Creek  Garibaldi Park WhistlerScree  Garibaldi Park WhistlerSpearhead Range  Garibaldi Park WhistlerTarn  Garibaldi Park WhistlerThe Table  Garibaldi Park WhistlerTownsend,Charles  Usnea or Old Man's BeardUsnea  Waterbar or Cross DitchWaterbar  Western Hemlock Trees in WhistlerWestern Hemlock  Western RedcedarWestern Redcedar  Whistler SpruceWhistler Spruce  Mills Winram Whistler Coast Mountains MountaineerWinram,Mills

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.

Usnea at Green Lake in Whistler

Usnea on the Wedgemount Lake Trail in Whistler

Usnea on the Panorama Ridge Trail

 Ablation Zone WhistlerAblation Zone  Accumulation Zone WhistlerAccumulation Zone  Adit Lakes WhistlerAdit Lakes  Aiguille Whistler & Garibaldi ParkAiguille  Alpine Zone Whistler & Garibaldi ParkAlpine Zone  ArborlithArborlith  Arete Whistler & Garibaldi ParkArête  A River Runs Through It WhistlerARRTI  Armchair Glacier, Garibaldi Park, WhistlerArmchair Glacier  The Barrier in Garibaldi ParkThe Barrier  Battleship Islands in Garibaldi LakeBattleship Islands  Bears in Whistler & Garibaldi ParkBears  Bench Geology WhistlerBench  Bergschrund or SchrundBergschrund  BivouacBivouac  Whistler Bungee BridgeBungee Bridge  Bushwhacking in WhistlerBushwhack  Garibaldi Park WhistlerCairn/Inukshuk  Garibaldi Park WhistlerCarter,Neal  Garibaldi Park WhistlerChimney  Garibaldi Park WhistlerCirque  Garibaldi Park WhistlerCloudraker  Garibaldi Park WhistlerCoast Douglas-fir  Garibaldi Park WhistlerCoast Mountains  Garibaldi Park WhistlerCol  Garibaldi Park WhistlerColumnar Jointing  Garibaldi Park WhistlerCordilleran  Garibaldi Park WhistlerCornice  Garibaldi Park WhistlerCorrie Lake  Garibaldi Park WhistlerCrevasse  Garibaldi Park WhistlerDalgleish,Alec  Garibaldi Park WhistlerDeadfall  Emerald Park in WhistlerEmerald Forest  Erratics in Garibaldi Park and WhistlerErratic  The Fissile in Garibaldi Park, WhistlerThe Fissile  Fitzsimmons Creek in WhistlerFitzsimmons Creek  Garibaldi Park WhistlerFitzsimmons Range  Garibaldi Park WhistlerFyles,Tom  Garibaldi Park WhistlerGaribaldi Ranges  Garibaldi Park WhistlerGaribaldi Volcanic Belt  Garibaldi Park WhistlerGemel  Garibaldi Park WhistlerGlacier Window  Garibaldi Park WhistlerGreen Lake  Garibaldi Park WhistlerHoary Marmot  Garibaldi Park WhistlerKrummholz  Lodgepole Pine Trees WhistlerLodgepole Pine  Glacier Moraines in Garibaldi Park WhistlerMoraine  Garibaldi Park WhistlerMt Garibaldi  Mount James Turner in Garibaldi Park, WhistlerMt James Turner  Mountain Hemlock Garibaldi Park WhistlerMountain Hemlock  Northair Mine in WhistlerNorthair Mine  North Arm FarmNorth Arm  Nunatuks in Whistler and Garibaldi ParkNunatuk  Nurse Stump or Log in WhistlerNurse Stump  Overlord Mountain and GlacierOverlord  Garibaldi Park WhistlerPacific Yew  Garibaldi Park WhistlerPaper Birch  Garibaldi Park WhistlerPeak 2 Peak  Garibaldi Park WhistlerRainbow Lodge  Garibaldi Park WhistlerRoundhouse  Garibaldi Park WhistlerRubble Creek  Garibaldi Park WhistlerScree  Garibaldi Park WhistlerSpearhead Range  Garibaldi Park WhistlerTarn  Garibaldi Park WhistlerThe Table  Garibaldi Park WhistlerTownsend,Charles  Usnea or Old Man's BeardUsnea  Waterbar or Cross DitchWaterbar  Western Hemlock Trees in WhistlerWestern Hemlock  Western RedcedarWestern Redcedar  Whistler SpruceWhistler Spruce  Mills Winram Whistler Coast Mountains MountaineerWinram,Mills

The Rubble Creek trailhead is the main access point for many of the best hikes and sights in Garibaldi Provincial Park.  Rubble Creek is located midway ...
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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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Hoary Marmots are the cute, pudgy, twenty plus pound ground squirrels that have evolved to live quite happily in the hostile alpine areas around Whistler.  ...
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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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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.  ...
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Glacier Window: the cave-like opening at the mouth of a glacier where meltwater runs out.  Glacier windows are often extraordinarily beautiful.  A blue glow ...
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Deadfall means a tangled mass of fallen trees and branches.  There are several name variations for fallen trees that are commonly used in Whistler.  ...
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Western redcedar is a very large tree commonly found in the Pacific Northwest. Frequently growing up to 70 metres and with a trunk diameter of 7 metres, ...
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Whistler & Garibaldi Park Hiking

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