Umbellularia
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Umbellularia californica is a large hardwood tree native to coastal forests and the Sierra foothills of California, and extending into the coastal forests southwestern Oregon and the mountains of nort
Umbellularia californica 02
Leaves
Flowers
Unripe bay nut
Phytophthora ramorum
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Phytophthora ramorum is the oomycete known to cause the disease sudden oak death. The disease kills oak and other species of trees and has had devastating effects on the oak populations in California
Umbellularia
…headache tree, mountain laurel, and balm of heaven. The tree is endemic to the California Floristic Province. It is a host of the pathogen that causes sudden oak death. The dry wood has a color range from blonde (like maple) to brown (like walnut). It is considered an excellent tonewood and is sought after by luthiers…
Sudden Oak Death
A hillside in Big Sur, California, devastated by sudden oak death