Episode 53: Boise’s Gernika Oak and Heartwood vs. Sapwood


Happy Treefort 2019! In celebration of Treefort Music Fest, every episode of our show in March is about trees.

Boise is known for its trees. We’re not called the City of Trees for nothing. Casey introduces us to the first of several famous trees in Boise, the Gernika oak, located in front of the Cyrus Jacobs/Uberuaga House in the Basque Block.

The Gernika oak depicted in the coat of arms of Gernika-Lumo – – via wikimedia commons

It wouldn’t be completely inaccurate to say that trees are dead inside. Daniel explains the difference between heartwood and sapwood. One is composed of dead cells and performs an important structural role, while the other is responsible for moving water and minerals from the roots to the shoots.

Yew wood (Taxus baccata) showing sapwood (light brown) and heartwood (dark brown) – – via wikimedia commons

Further Reading:


This episode aired on Radio Boise in March 2019 and featured music by Toy Zoo.

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