Plant Association Information
Picea mariana/Vaccinium uliginosum plant association (Black spruce/Bog blueberry)
Click on the headings below to view details about this plant association.
Picea mariana (greater than 40% cover and 3 to 5 meters in height) is the only tree species in the association (Appendix 4). Vaccinium uliginosum (average 30% cover) dominates the shrub layer. Other associated species include Ledum decumbens, Alnus crispa, Betula glandulosa, Betula nana, and Vaccinium vitis-idaea. Moss (25% to 90% cover) includes Hylocomium splendens, Sphagnum species, and Pleurozium species.
This plant association is a component of the boreal forest north of the Alaska Range in Denali National Park and Preserve. It most frequently occurs on rounded ridgetops and gentle sideslopes (<10 degree slope) of rolling hills. The soils are mesic and well drained often with a thin layer of organic matter (20 centimeters) overlaying mineral soil and bedrock.Associated Plant Species: Alnus viridis
, Betula nana
, Hylocomium splendens
, Picea mariana
, Pleurozium schreberi
, Rhododendron tomentosum ssp. decumbens
, Sphagnum spp.
, Vaccinium uliginosum
, Vaccinium vitis-idaea