04/26/2026
The Pacific yew completely revolutionized cancer treatment in the 1960s. Its bark contains Taxol, a powerful compound that prevents cancer cells from replicating.
Early on, harvesting it was highly destructive. It required the bark of a whole tree to yield just one dose, and removing that bark is fatal to the yew. Today, the medical industry creates the drug in a lab without needing to strip wild trees.
This species highlights the incredibly complex chemistry at work out in the woods. It is a perfect example of why the tallest trees in the canopy do not always hold the most value.