Plant Association Information
Populus balsamifera-Picea glauca, Salix glauca, Juniperus communis, Elymus innovatus, Arctostaphylos uva-ursi, Hylocomium splendens
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This plant association has an overstory closure of 35% with Populus balsamifera and Picea glauca codominant. The mean age of the Populus balsamifera is 96 years. Picea glauca seedlings are evident. The major species of the shrub layer are Salix glauca (10% cover), Salix brachycarpa ssp. niphoclada (10% cover), Juniperus communis (10% cover) and Shepherdia canadensis (3% cover). The major species of the herbaceous layer are Elymus innovatus (20% cover), Arctostaphylos uva-ursi (10% cover), Calamagrostis inexpansa (10% cover), Oxytropis campestris ssp. gracilis (5% cover) and Hedysarum alpinus (5% cover). Geocaulon lividum, Carex cocinna and Pyrola secunda are of scattered occurrence. The major nonvascular species are Hylocomium splendens (33% cover), Cladonia species (10% cover), Peltigera aphthosa, Cetraria cucullata and Polytrichium species.
This type was found at an average altitude of 275 meters on alluvial/colluvial deposits in the Tanana lowland.
Associated Plant Species: Arctostaphylos uva-ursi,
Carex concinna,
Flavocetraria cucullata,
Geocaulon lividum,
Hedysarum alpinum,
Hylocomium splendens,
Juniperus communis,
Leymus innovatus,
Orthilia secunda,
Peltigera aphthosa,
Picea glauca,
Populus balsamifera,
Salix glauca,
Salix niphoclada,
Shepherdia canadensis