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| Pinus strobus – White Pine |
Pinus strobus commonly known as Weymouth Pine also known as
Eastern White Pine. It’s a vive-needled conifer of the eastern half of North
America, now found sparsely throughout Europe, and was introduced in the
eighteenth century by Lord Weymouth on his Longleat estate near Bath. It is
reputed to have been first grown at Badminton, Gloucestershire, by the Duchess
of Beaufort in 1705. It was the first conifer planted in the Forest of Dean.
Fine needles and banana-shaped cones make this an interesting tree, but one
which is frequently ruined by a rust fungus and by bark aphids.
P. strobus is one of the long living tree. Mature trees are
living 200-250 years, sometimes it can lives more than 400 years. It grows
approximately 1 M (3.3 ft) yearly between the ages of 15 to 45 years. It is the
tallest tree in Easter North America. It grows 50-58 M (168-188 ft) in height.
Sometimes it grows up to 70 m (230 ft) tall.
The young shoots are slender and green, later turning
greenish-brown becoming roughened by the scars left by fallen needles, but much
smoother than two-needle pines. The small resin-coated buds are sharply pointed
and greyish-brown. The five pendent needles are thin, 7-13 cm long, blue-green or
bluish-grey, and bound together at their base by a sheath consisting of
membranous scales.
The flowers of both sexes are found on the same tree. The
male catkins are about 1 cm long and are in small clusters, yellow when ripe.
The slender female flowers are about 2 cm long, pink with purple scale margins.
When young the cones are green, later becoming brown. They are pendent,
slightly curved (banana-shaped), up to 15 cm long, their widely separated
scales sometimes coated with white blobs of resin. Heavy crops of cones only
occur at intervals of from four to seven years.
The bark on young stems is smooth and green or
greenish-brown, later becoming dark grey, rough, and deeply fissured into
broad, scaly ridges on the lower part of the trunk. The wood is pale brown,
light, soft, and fine textured, suitable for joinery and general purposes.
The tree would undoubtedly be a fine timber-producer
in southern America and Europe but for the attack of a rust fungus, Cronartium
fibicola, which causes ‘blisters’ on the pine shoots and at another stage
attacks black-currants and gooseberries. As it is, the tree is now rarely
planted.
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| Pinus strobus – White Pine |
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| Pinus strobus – White Pine Leaves |
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| Pinus strobus Leaves |
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| Leaves of White Pine |
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| Leaves of Pinus strobus |
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| White Pine Leaves |
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| Male Catkin of White Pine |
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| Male Flowers of White Pine |
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| Pinus strobus male flowers |
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| Female Cone of White Pine |
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| White Pine Female Cone when rip |
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| The Bark of White Pine |
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| White Pine as Ornamental Plant |
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| Pinus strobus – White Pine in Park |
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| Ornamental White Pine |
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| Pinus strobus ornamental Plant |
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| Pinus strobus – White Pine as Christmas Tree |
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| Pinus strobus – White Pine |
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| Pinus strobus – White Pine forest |
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| Pinus strobus – White Pine |
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| Pinus strobus – White Pine |
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| Pinus strobus – White Pine |
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| Pinus strobus – White Pine |
