WHITEBARK PINE 
Pinus albicaulis Engelmann 
Whitebark pine, if growing in a favorable location, is somewhat 
different in its habit of growth from most other pine trees. The 
branches ate flexible and often almost etect, the purple cones being 
borne near their ends. The trunk is frequently two to four feet in 
diameter, but the height of the tree is only twenty to thirty feet. This 
pine is seldom found below 5,000 feet, and at timberline it grows as 
a low and often creeping shrub. When in bloom the dainty pink 
staminate flowets are very lovely. They shed their pollen freely. On 
wind-swept summits this tree takes on weatherbeaten and fantastic 
forms. 
Whitebark pine ranges from Wyoming to California and north to 
Alberta and British Columbia. 
The branch sketched came from a tree which gtew on the side of 
the Yoho Valley, ten miles from Field, British Columbia, at an altitude 
of 5,000 feet. 
PLATE 377 
