Plant Association Information
Alnus crispa, Salix planifolia, Betula nana, Empetrum nigrum, Vaccinium vitis-idaea, Hylocomium splendens
Click on the headings below to view details about this plant association.
Alnus crispa is dominant in the shrub overstory of this plant association. The height of Alnus crispa varies from 1.2 to 2 meters, and the cover varies from 5% to 75%. Salix planifolia ssp. pulchra and Betula nana both with average heights of 0.9 meters and average cover values of 10% are codominant in the second shrub layer. Other associates in the shrub layer are Vaccinium uliginosum and Ledum palustre with average cover values of 30% and 10% respectively. Spiraea beauverdiana is an occasional associate. The major species of the herbaceous layer are Empetrum nigrum (25% cover), Vaccinium vitis-idaea (25% cover), Carex bigelowii (10% cover) and Arctagrostis latifolia var. latifolia (8% cover). Important occasional associates are Petasites hyperboreus (10% cover), Polygonum bistorta (8% cover), Polemonium acutiflorum (2% cover) and Poa arctica (3% cover). The major species of the nonvascular layer are Hylocomium splendens (25% cover), Polytrichium species (3% cover) and Stereocaulon species (2% cover).
None listed.
Associated Plant Species: Alnus viridis,
Arctagrostis latifolia,
Betula nana,
Bistorta plumosa,
Carex bigelowii,
Empetrum nigrum,
Hylocomium splendens,
Petasites frigidus,
Poa arctica,
Polemonium acutiflorum,
Rhododendron tomentosum ssp. decumbens,
Salix pulchra,
Spiraea stevenii,
Vaccinium uliginosum,
Vaccinium vitis-idaea