Jack pine

Definition and stakes

Various,  Popular Science Monthly (1914)

“ In the United States the jack pine prefers coarse sand and the other trees above mentioned are found mainly in peat bogs; but farther north they may grow in almost any kind of soil, wet or dry. (In Alaska even some of the glaciers are said to be partly covered with spruce forests.) The regions where they grow are characterized by cool and moderately humid climates, with an average temperature of 45° F. or less, and an average growing season (i. e., period free from killing frosts) of not
Burned Spruce Swamp, With Living Trees in Background, Cheboygan Co., Michigan.
”
Source: Wikisource

Thos. D. Murphy,  Oregon, the Picturesque

“ It was fair, however, except for occasional sandy spots and at times good speed was possible over its long, level stretches, for there is scarcely a five per cent grade between the park and Bend. Nearly the whole distance it runs through forests, chiefly the worthless lodge-pole or “Jack” pine, which grow almost as thickly as they can stand. One wonders that they have escaped the fires of whose deadly work we so frequently saw distressing evidences among the more valuable varieties of evergreens. ”
Source: Gutenberg

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