║ Needles are arranged in bundles of  5   3 3 (some 2) 2 (some 3) 2 :

Bundles of 5

needles=soft, flexible;  bark=dark furrowed;  🇨🇦 Canada and 🇺🇸 USA east of the 🗻︎ Rocky Mountains
◼︎ eastern white pine  Pinus strobus

🗻︎ mountainous western 🇨🇦 Canada and 🇺🇸 USA
◼︎ whitebark pine  Pinus albicaulis

🗻︎ mountainous western 🇨🇦 Canada and 🇺🇸 USA
limber pine or 🗻︎◼︎ Rocky Mountain white pine  Pinus flexilis

Bundles of 3 (some 2)

needles=long (13–20 cm) (5–8 in), not twisted
ponderosa pine  Pinus ponderosa

Bundles of 2 (some 3)

needles=long (8–13 cm) (3–5 in), slender;  twig=whitish
shortleaf pine  Pinus echinata

Learn more about pines genus Pinus (Pinus spp.)

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

Native throughout the 🌐︎ Northern Hemisphere, particularly temperate regions, but into the arctic and tropics (and from there, a bit into the 🌐︎ Southern Hemisphere).   🗺 Map of 4 species (section contorta) by county (🇺🇸 USA-48), ** 3 species covered above, 🗺 map by county (🇺🇸 USA-48) (color key).   Invasive > 🌐︎ global

🏛🌲︎ State trees of North Carolina.

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.

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Gymnosperm database Michigan Flora Minnesota Wildflowers Flora of North America USDA PLANTS db Wikipedia