Pinus contorta - Description and images of Lodgepole Pine and its subspecies of western North America. www.botanik.uni-bonn.de/conifers/pi/pin/cont.htm
Pinus contorta var. contorta - Distribution and Occurence; Value and Use; Characteristics; Fire Ecology www.fs.fed.us/database/feis/plants/tree/pinconc
Pinus contorta var. latifolia - Distribution and Occurence; Value and Use; Characteristics; Fire Ecology www.fs.fed.us/database/feis/plants/tree/pinconl
Pinus contorta var. murrayana - Distribution and Occurence; Value and Use; Characteristics; Fire Ecology www.fs.fed.us/database/feis/plants/tree/pinconm
