Betula glandulosa Provisional Shrubland Alliance
Resin birch thickets

Summary Information

  • Primary Life FormShrub
  • Elevation900-2500 m
  • State RarityS2?
  • Global RarityG5
  • DistributionCAN: AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, QC, SK, YT. DEN (GL). USA: AK, CA, CO, ID, ME, MT, NH, NY, OR, SD, UT, WA, WY (USDA Plants)
  • Endemic to CaliforniaNo
  • Endemic to California Floristic Province and DesertsNo
  • Date Added2009/09/01

Characteristic Species

Betula glandulosa is dominant in the shrub canopy with Artemisia tridentata ssp. vaseyana, Ribes inerme, Salix bebbiana, Salix boothii, Salix eastwoodiae and Salix lucida. Emergent conifers may be present at low cover, including Abies concolor.

Vegetation Layers

Shrubs < 4 m; cover is intermittent to continuous. Herbaceous layer is intermittent to continuous.


Montane perennially wet meadows, stream sides. Soils are alluvial and usually deep with an organic layer.

Other Habitat, Alliance, and Community Groupings

MCV (1995) Montane wetland shrub habitat
NVCS (2009) Betula nana seasonally flooded shrubland alliance
Calveg Water birch, Riparian mixed shrub, Cottonwood-Alder, Willow-Alder
Holland Modoc-Great Basin riparian forest, Modoc-Great Basin riparian scrub
Munz Not treated
WHR Montane riparian
CDFW CA Code 63.620.00