California bay

Umbellularia californica

Known as the 'Peppernut' tree, its roasted seeds were once used as a chocolate-like food source by Indigenous Californians.

Scientific name
Umbellularia californica
Taxonomy
Plantae › Tracheophyta › Magnoliopsida › Laurales › Lauraceae › Umbellularia
IUCN Red List status
Least Concern
Population trend
stable
Biome
forest
Habitat
Mixed evergreen forests, oak woodlands, and riparian corridors from sea level to 1,600 meters.
Diet
Photosynthetic (autotroph); absorbs minerals and water from soil.
Range
California, USA, Oregon, USA, Baja California, Mexico
Size
10-30 meters tall; trunk diameter up to 1.5 meters.
Lifespan
200-300 years
Active
diurnal
Threats
Sudden Oak Death (Phytophthora ramorum), urban development, and high-intensity wildfires.
Safe to approach?
Harmless but pungent. Crushed leaves release umbellulone, which can cause 'laurel headaches,' sneezing, or sinus irritation if inhaled deeply. Safe to observe; do not ingest in large amounts.

Umbellularia californica is a large hardwood tree native to coastal forests of California, as well as to coastal forests extending into Oregon. It is endemic to the California Floristic Province. It is the sole species in the genus Umbellularia .

Photo: Mike Heine, CC-BY, via iNaturalist

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