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Coulter Pine

Pinus coulteri

Coulter Pine

Quick Facts

Deciduous or Evergreen?

Evergreen

Avg Height'

Avg Diameter"

50

36

Rarity

Family

Pinaceae

Growing Zone

In Arboretum?

8 - 10

Yes

Help

What's this?

Coulter Pine trees are best known for their cones - they can grow to be 11 pounds each, and are second only to the Bunya Pine! This tree has spiky, green needles that grow in bunches off each branch. Compared to most other members of the Pine family, this tree has a puffy appearance, and is less conical in shape than the conventional pine tree. Despite their filled out form, Coulter Pines do little to provide shade with their thin spiky needles.

Image by Bri Weldon, Wiki Creative Commons

Foliage

Needle like evergreen foliage that is produced in bunches along branches, bright green and grey in color

Seeds or Cones

Some of the biggest on Earth, the Coulter Pine produces massive, spiked cones that fall off trees when ready to disperse. These cones have earned the affectionate name of “widowmaker” with those who interface with them frequently. The sharp spines on the Coulter pinecone are called talons.

All illustrations by A.S. Longman

Did you know?

Watch out! Reports of Coulter Pines dropping cones on unsuspecting bystanders have resulted in concussions (and worse)

Download your own QR code here! On a phone, tap and hold to save. On a computer, right click. See the "make a sign" page for detailed instructions on how to make your own sign, and access additional tools!

Information last fact checked by UW Botanic Garden in Spring 2024

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UW Museology

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