Also called grey pine and scrub pine (although do not confuse with sister-species scrub pine  Pinus virginiana, which is also called that).

Part of 🌲︎ pine  genus Pinus in 🌲︎ cedar / fir / hemlock / larch / pine / spruce  family Pinaceae in 🌲︎ conifer  order Pinales.

Native to 🇨🇦 Canada, and northernmost 🇺🇸 USA.

🗺 Map (scroll down), 🗺 map (North America, Central America),  Adobe Acrobat Reader file 🗺 today + with climate change (eastern 🇺🇸 USA).

In this area (particularly 🇨🇦 Canada AB BC SK, and 🇺🇸 USA AZ CA CO ID MO MT NV NM OR SD UT WA WI WY):

  • do not move pine logs, stumps, branches, firewood nor untreated lumber
due to possible infestation by the insect mountain pine beetle (MPB)  Dendroctonus ponderosae, which carries various species of 🍄︎ fungus / mushroom  kingdom Fungi.

Uses by native peoples
(Ethnobotany database)

Pinus hosts caterpillars of 247 species
of butterflies and moths, in some areas.
  This plant is also known to be a host for (in areas where invasive) 🐝︎ spotted lanternfly (SLF)  Lycorma delicatula.

Jack pine requires 🔥︎ fire to 🌱︎ germinate, to melt the sap in their very-tough seratonous (resin-filled) cones, releasing the seeds.  Thus, jack pine forests are often composed of trees all the same age, all 🌱︎🌱︎🌱︎ germinated together after a fire moved through (and perhaps killed their parents).

Jack pine often grows with aspen/​cottonwood/​poplar  genus Populus — after a fire, both grow fast and eventually would get shaded out by spruce  genus Picea and fir  genus Abies, until again invig­or­ated by the next cycle of fire.

These young fire-invig­or­ated jack pine are essential for nesting of the endangered 🐦︎ Kirtland's warbler  Setophaga kirtlandii. [1]

Cones of jack pine point toward its branch tips.


[1]  Rubin, Neal.  "Endangered no more, could Kirtland's warbler replace robin as state bird?"  The Detroit News.  .   Accessed .

Learn more about jack pine Pinus banksiana

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Gymnosperm database Michigan Flora (Minnesota) Wild Flower Garden Minnesota Wildflowers Missouri Botanical Garden Flora of North America NRCS PLANTS db Silvics USFS Wikipedia