Plant Association Information
Salix alaxensis, Alnus crispa, Salix arbusculoides, Artemisia tilesii
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The dominant species in the shrub overstory of this type is Salix alaxensis which is 4 meters tall with a cover value of 35%. Alnus crispa (2 meters tall, 40% cover), Salix arbusculoides (1.5 meters tall, 10% cover) and Viburnum edule (5% cover) are the other major shrub species. The major species of the herbaceous layer are Artemisia tilesii (30% cover), Epilobium latifolium (8% cover), Epilobium angustifolium (8% cover), Calamagrostis lapponica (5% cover), Parnassia kotzebui (3% cover), Salix reticulata (2% cover), Aconitum delphinifolium (3% cover), Solidago multiradiata (3% cover), Erigeron acris ssp. politus (1% cover), Dryas octopetala (5% cover), Oxytropis maydelliana (3% cover), Pedicularis capitata (3% cover) and Poa arctica (3% cover). The major species of the nonvascular layer is Hylocomium splendens (4% cover).
This type is found at an average altitude of 579 meters with a 50% slope. There is zero range in elevation. It is a creek bank community found on alluvial deposits. The ground surface is 30% unvegetated, covered with humus, mineral soil and rock. The aspect is 156 degrees.
Associated Plant Species: Aconitum delphinifolium,
Artemisia tilesii,
Calamagrostis lapponica,
Chamerion angustifolium,
Chamerion latifolium,
Dryas octopetala,
Erigeron acris,
Hylocomium splendens,
Oxytropis maydelliana,
Parnassia kotzebuei,
Pedicularis capitata,
Poa arctica,
Salix alaxensis,
Salix arbusculoides,
Salix reticulata,
Solidago multiradiata,
Viburnum edule