Skye Flora

Scots Pine


Pinus sylvestris

 

Pinus sylvestris
Young tree c 170 cm high

Photo © Carl Farmer
21 Feb 2004 Portree

Not native to Skye, though comes close on the adjacent mainland.  Often planted here, and self-sown seedlings are frequent but seldom attain maturity.

Leaves (needles), c 3-10 cm long

Skye ID: Leaves glaucous on the underside, owing to several bluish-white lines along their length.  Needles in pairs.  Sitka Spruce has far shorter leaves, arising singly, and only two bluish-white lines along each leaf.

Other features: Mature trees can be told from other Pine species by the smooth reddish-brown areas of bark on the upper trunk.  Lodgepole Pine (P contorta) is often planted for forestry.  It does not have glaucous leaves and is unlikely to produce self-sown seedlings.

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Pinus sylvestris

Photo © Carl Farmer
21 Feb 2004 Portree
 

As the leaves are twisted, both sides of them can be seen in this picture, the dark green upper side and the glaucous underside.

 

Pinus sylvestris
Shoot c 9 cm wide

Photo © Carl Farmer
21 Feb 2004 Portree

  Pinus sylvestris
Ruler divisions 1 mm

Photo © Carl Farmer
21 Feb 2004 Portree

  On a close-up view
the glaucous effect
on the underside is
caused by these bluish-
white lines alternating
with dark green.

 


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