Scots Pine, Pinus sylvestris

Scots pine (Pinus sylvestris) is the only native pine to Europe and Asia and was introduced in New Zealand and the colder climates of North America. The Scots pine grows at sea level to 3281 feet in the northern regions and 3937-8530 feet in the south.

The Scots pine grows to heights of 114 feet with a trunk that is just over three feet through. The bark is thick and dark grey-brown on the lower trunk with the upper trunk having bark that is thin and orange. The trunk is long and straight with the top rounded with foliage. The foliage is blue-green during spring, summer, and changes to dark green or dark yellow-green in the winter. The needles grow in bundles of two measuring 0.98-1.9 inches long. The seed cones are rounded and measures 0.15-0.31 inches in the first year and maturing at 1.1-2.9 inches in their second year. First year cones are green in color then changes to grey-green to yellow-brown. The seeds measure 0.11-0.19 inches long with the wings measuring 0.47-0.78 inches long. The seeds spread in the spring 22-24 months after pollination. Pollen cones may be yellow or pink and
the Scots pine wood is used for pulp and timber production. The wood of the pine is pale brown to red-brown. This pine was once used for making tar and turpentine. The pine wood nematode and other diseases can kill the Scots pine within weeks.

In areas such as Ontario, Michigan, and Wisconsin, the Scots pine is considered invasive. In the United States, the pine is used for the Christmas tree.

Image Caption: Scots pine (Pinus sylvestris). Credit: ancientsword/Wikipedia (CC BY-SA 2.0)