One Two Tree
Western White Pine illustration

Western White Pine

Pinus monticola

Once the dominant timber tree of the Inland Northwest, western white pine's numbers were decimated through the 20th century by introduced white pine blister rust. Breeding programs have worked for decades to bring this stately five-needle pine back to its former range.

Where found

Moist mountain slopes of the Cascades, Rockies, and northern Idaho panhandle.

Fun facts

  • Idaho's state tree.
  • Needles grow in bundles of five, blue-green with a fine white line.
  • An introduced fungal disease, white pine blister rust, wiped out most mature stands in the 20th century.

Specs

Western White Pine specifications
Height30–50 m (up to 70 m)
Spread6–9 m
Lifespan300–400 yrs
Growth RateModerate
SunFull sun to part shade
Native RangeBritish Columbia to central California, east to Montana and Idaho