Plant Association Information
Salix alaxensis, Salix glauca, Rosa acicularis, Petasites hyperboreus, Calamagrostis inexpansa
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This shrub community has an overstory of 3.2 meters which is Salix alaxensis with an average cover value of 5%. The understory is composed of 1.5 meters Salix glauca (60% cover), Salix planifolia ssp. pulchra (5% cover) and Rosa acicularis (12% cover). The herbaceous layer is composed of Petasites hyperboreus (30% cover), Mertensia paniculata (10% cover), Calamagrostis inexpansa (10% cover), Festuca altaica (10% cover), Artemisia tilesii (10% cover), Equisetum arvense (10% cover), Carex saxitalis ssp. laxa (2% cover), Carex podocarpa (2% cover) and Heracleum lanatum (5% cover). The major species of the nonvascular layer are Hylocomium splendens (5% cover) and Stereocaulon species (1% cover).
The altitude of this type is 1,030 meters with a 9% slope and a northeast exposure. There is zero range in elevation. It is found on volcanic sediments. The ground surface is 40% unvegetated covered with humus.
Associated Plant Species: Artemisia tilesii,
Carex podocarpa,
Equisetum arvense,
Festuca altaica,
Heracleum lanatum,
Hylocomium splendens,
Mertensia paniculata,
Petasites frigidus,
Rosa acicularis,
Salix alaxensis,
Salix glauca,
Salix pulchra