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Pinus
contorta variety latifolia (Lodgepole Pine) Pinaceae (Pine Family) Montane, subalpine. Woodlands.
Summer. Pinus contorta is, as the map below indicates, found in the Four Corners region only in Colorado, and it was introduced in this area and is uncommon. In those areas where Pinus contorta does naturally occur, it can occur in dense stands. Notice in the photographs above and at left that there is little shrub undergrowth. Heavy shade is the reason these trees were introduced in the western San Juans. It was thought, according to Phil Kemp (who was for many years the Forester for the Dolores District of the San Juan National Forest), that after the area was logged, the desired Picea engelmannii would sprout in the shade of the introduced Pinus contorta. That did not happen. The tallest trees pictured are about seventy years old and the youngest trees are about fifteen. In the mid-1820s David Douglas was the first to identify this tree for science from specimens he found "in swampy ground near the sea coast, and abundantly near Cape Disappointment, Washington and Cape Lookout, Oregon". (Intermountain Flora quotation.) Douglas named the species and George Engelmann named the variety that is found in Colorado: Pinus contorta variety latifolia. "Con torta" is Latin for "with a twist", perhaps given by Douglas because the leaves often twist and perhaps also because the variety that grows near the sea coast (P. contorta var. contorta) sometimes has trunks that twist. |
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Pinus
contorta variety latifolia (Lodgepole Pine) Pinaceae (Pine Family) Montane, subalpine. Woodlands.
Summer. The scaly bark of Lodgepole Pine varies from gray to orange brown and can fracture exposing an orange layer beneath the light gray. | |
Pinus
contorta variety latifolia (Lodgepole Pine) Pinaceae (Pine Family) Montane, subalpine. Woodlands.
Summer. Bristle-tipped cones (yellow/orange in youth, light gray in future years) remain on the tree for a number of years. (Also see the second photograph at the top of this page.) Some cones open only in fires to disperse their seeds. The small, flaky-looking buff-colored cylindrical structures to the right of the cone in the first two photographs at left are the male, pollen-bearing flowers. The day I took the second photograph at Andrews Lake, winds were releasing clouds of pollen from the male flower. |
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Pinus
contorta variety latifolia (Lodgepole Pine) Pinaceae (Pine Family) Montane, subalpine. Woodlands.
Summer. Even Evergreens can have fall color. |
Range map © John Kartesz,
County Color Key
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Range map for Pinus contorta |