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Pinus strobus — eastern white pine

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Facts

Soft, slender needles in bundles of 5 are characteristic of eastern white pine. Seedlings, saplings, and mature trees produce whorls of branches; the number of whorls present along a bole roughly correlate with the age (in years) of the tree. Many older white pines show two or more leaders, which are stimulated to grow when the central shoot is attacked by the white pine weevil. This widespread and widely planted tree grows quickly on a variety of dry to wet soils. Its soft wood is exceptionally useful for construction. Virgin stands of this long-lived (to 450 years) tree once covered New England and the huge boles were reserved by the King of England for masts and other uses to prevent overharvesting in the young and growing Colonies.

Habitat

Anthropogenic (man-made or disturbed habitats), forest edges, forests, swamps, woodlands

New England distribution

Adapted from BONAP data

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North America distribution

Adapted from BONAP data

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Characteristics

Habitat
  • terrestrial
  • wetlands
New England state
  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont
Growth form
the plant is a tree
Leaf form
the leaves are needle-like
Leaf cross-section
the needle-like leaves are rounded, or flattened on one side (can be rolled between the fingers)
Leaf arrangement
the needle-like leaves are in clusters or held on short shoots
Seed cone form
the seed cone is longer than wide, with woody scales attached at the base
Leaf clustering
the needle-like leaves are in bundles or clusters of five
Leaves overlapping
the needle-like leaves are separate and do not hide the twig surface
Show all characteristics

  • Fruits or seeds

    Seed cone base
    the base of the seed cone does not look hollow
    Seed cone bracts
    the bracts are covered by the seed cone scales
    Seed cone form
    the seed cone is longer than wide, with woody scales attached at the base
    Seed cone scales
    the visible portion of the scale of the closed seed cone is thickened at its base
    Seed cone symmetry
    the seed cone is symmetrical
    Seed cone umbo position
    the raised portion is at the tip of the seed cone scale
    Seed cone umbo spine
    the seed cone scale does not have a sharp point
    Seed wings
    the seeds have wing-like projections

  • Growth form

    Growth form
    the plant is a tree

  • Leaves

    Leaf arrangement
    the needle-like leaves are in clusters or held on short shoots
    Leaf base
    NA
    Leaf clustering
    the needle-like leaves are in bundles or clusters of five
    Leaf cross-section
    the needle-like leaves are rounded, or flattened on one side (can be rolled between the fingers)
    Leaf duration
    the needle-like leaves remain green all winter
    Leaf form
    the leaves are needle-like
    Leaf glands
    there are no glands on the underside of the needle-like leaves
    Leaf stalks
    the needle-like leaves do not have a leaf stalk
    Leaf types
    there are two distinct types of needle-like leaves on the twig
    Leaves overlapping
    the needle-like leaves are separate and do not hide the twig surface

  • Place

    Habitat
    • terrestrial
    • wetlands
    New England state
    • Connecticut
    • Maine
    • Massachusetts
    • New Hampshire
    • Rhode Island
    • Vermont
    Specific habitat
    • edges of forests
    • forests
    • man-made or disturbed habitats
    • swamps
    • woodlands

  • Stem, shoot, branch

    Bark resin blisters
    there are no resin blisters on the bark
    Branchlet thickness
    2–5 mm
    Leaves on shoots
    there are needle-like leaves growing in tight clusters on a short, knob-like shoot
    Twig bloom
    there is no bloom on the twig
    Twig hair type
    the twigs have few or no hairs on them
    Twig hairs
    • the twig does not have hairs
    • the twig is hairy

Wetland status

Usually occurs in non-wetlands, but occasionally in wetlands. (Wetland indicator code: FACU)

In New England

Distribution

Connecticut
present
Maine
present
Massachusetts
present
New Hampshire
present
Rhode Island
present
Vermont
present

Conservation status

Exact status definitions can vary from state to state. For details, please check with your state.

Massachusetts
unranked (S-rank: SNR)

From Flora Novae Angliae dichotomous key

6.  Pinus strobus L. N

eastern white pine. Strobus strobus (L.) Small • CT, MA, ME, NH, RI, VT. Forests and woodlands, predominantly on mesic to xeric soils, but sometimes found on hydric soils.

Native to North America?

Yes

Synonyms

  • Strobus strobus (L.) Small

Family

Pinaceae

Genus

Pinus