Plant Association Information
Picea glauca, Salix planifolia, Vaccinium uliginosum, Arctostaphylos rubra, Hedysarum alpinum, Hylocomium splendens
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The overstory cover value for Picea glauca in this plant association is 25% to 35%. The mean age is 175.3 years. The shrub layer is composed of Salix planifolia ssp. pulchra (25% cover), Vaccinium uliginosum (30% cover), Potentilla fruticosa (10% cover) and Shepherdia canadensis (10% cover). Salix hastata and Salix barclayi are occasional associates. The herbaceous cover is Arctostaphylos rubra (30% cover), Salix reticulata (25% cover), Elymus innovatus (10% cover), Vaccinium vitis-idaea (10% cover), Empetrum nigrum (10% cover), Pyrola grandiflora (25% cover) Astragalus alpinus (25% cover), Hedysarum alpinum (30% cover), Solidago multiradiata (10% cover), Aster sibiricus (10% cover), Dryas integrifolia (5% cover) and Tofieldia coccinea (10% cover). The nonvascular layer is dominated by Hylocomium splendens with 75% cover.
This type is found at an average altitude of 712 meters with an average slope of 2% and an average aspect of 230 degrees. The substrate is alluvial and predominantly river bars. This plant association has a greater closure of overstory than C12.
Associated Plant Species: Arctostaphylos rubra,
Astragalus alpinus,
Dasiphora fruticosa,
Dryas integrifolia,
Empetrum nigrum,
Eurybia sibirica,
Hedysarum alpinum,
Hylocomium splendens,
Leymus innovatus,
Picea glauca,
Pyrola grandiflora,
Salix barclayi,
Salix hastata,
Salix pulchra,
Salix reticulata,
Shepherdia canadensis,
Solidago multiradiata,
Tofieldia coccinea,
Vaccinium uliginosum,
Vaccinium vitis-idaea