Northwest Conifers

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Knobcone Pine – Pinus attenuata

Needles: Grow in budles of three. They are 3-6 inches long, stiff and twisted.

Twig

Cones: You can identify this pine by its unique clusters of knobby cones. They  adhere to limbs in clusters, gripping the tree so tightly that they sometimes become embedded as the tree grows around them. They often remain closed for years until the seeds are released after a fire.

Cones

Bark: The bark is gray, thin, and breaks into scales on large trees.

Bark

Where it grows: In southwest Oregon, it grows above 1000 feet in the mountains near the coast and some scattered locations in the southern Cascades. It also grows in scattered locations throughout much of California.

Map

USGS Distribution Map

Names: The species name, attenuata, is latin for "tapered."

Tree


© 2012 Ken Denniston