The Scots Pine (Pinus sylvestris) is the most widespread pine tree in the world, according to the Gymnosperm Database. This tree can grow 130 feet tall, and its bark is normally scaly-plated and grey-brown, while the leaves are needle-shaped.
Although there was successful introduction of the Scots Pine in Iceland, the planting of this tree was abandoned in 1962 due to the severe damage caused to it by the insect woolly aphid, according to the Food and Agriculture Organization of the United Nations.
The Lodgepole Pine (Pinus contorta) can grow as much as 165 feet, according to the Gymnosperm Database. The bark is often red-brown and the needle-shaped leaves yellow-green to dark green.
According to Iceland Forest Service, 777,000 seedlings of Lodgepole Pine were planted in 2007, which represents 12.6 percent of the total trees planted in Iceland during that year.
The Mountain Pine (Pinus mugo) is a much smaller pine tree, growing up to 65 feet. According to the Gymnosperm Database, this pine tree prefers high altitudes, but copes well with lower altitudes.
The Rocky Mountain Pine (Pinus aristata), which is native of the U.S., has twisted branches, shallowly fissured grey to red-brown bark and deep-blue needle-shaped leaves, according to the Gymnosperm Database.
The Swiss Pine (Pinus cembra) is a tall pine tree, reaching up to 115 feet, according to the Gymnosperm Database. Its crown is narrow in youth, developing an open, flattened crown with age, with stiff dark leaves.
