Jack Pine

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Jack Pine

Common name: JACK PINE

Adapted to fires, which opens the cones to release seed.

Latin name: Pinus banksiana (Lamb)

Type of tree: coniferous (native)

  • Bark (colour and texture): brown to gray darkening with age; flaky surface becomes furrowed at maturity
  • Leaves (shape, size, etc.): needle shaped; 2 to 5 centimetres long; yellow-green colour; twisted, stiff, sharp; borne in groups of two on the stem
  • Form: branchy with irregular crown

Height: 15 to 20 metres

Growth rate: medium

Fruit and flowers: seeds borne in hard knobby persistent cones, 5 to 7 centimetres long; curved in toward supporting branch; mature after two years

Soil: common on variety of sites; best growth in sandy soils; tolerates acidic conditions

Limitations: susceptible to Dwarf Mistletoe disease, which attacks tree, producing thick, tufted growths of small branches (witches brooms)