Species composition and production vary in different stands of lodgepole pine (Pinus contorta). Soil development, slope, humidity as well as density of trees may cause this variability. Project Number 158.
"Understory Vegetation of Lodgepole Pine,"
Jackson Hole Research Station Annual Report: Vol. 1968
, Article 2.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1968/iss1/2