Umbellularia californica (Hook. & Arn.) Nutt.

are eaten by

• Global Biotic Interactions: Calepitrimerus umbellulariae
• Global Biotic Interactions: Apodemus sylvaticus rhadinovirus 1
• Global Biotic Interactions: Euthoracaphis umbellulariae (Essig 1932)
• Global Biotic Interactions: Euthoracaphis umbellulariae (Essig 1932)
• Global Biotic Interactions: Euthoracaphis umbellulariae (Essig 1932)
• Global Biotic Interactions: Otospermophilus beecheyi douglasii (Richardson 1829)
• Global Biotic Interactions: Melozone crissalis (Vigors 1839) (Tohi de Californie)
• Global Biotic Interactions: Zonotrichia atricapilla (Gmelin & JF 1789) (Bruant à couronne dorée)
• Global Biotic Interactions: Pieris marginalis Scudder 1861
• Global Biotic Interactions: Tamias merriami J. A. Allen 1889
• Global Biotic Interactions: Junco hyemalis (Linnaeus 1758) (Junco ardoisé)
• Global Biotic Interactions: Cyanocitta stelleri (Gmelin & JF 1788) (Geai de Steller)
• Global Biotic Interactions: Cyanocitta stelleri (Gmelin & JF 1788) (Geai de Steller)
• Global Biotic Interactions: Odocoileus hemionus (Rafinesque 1817)
• Global Biotic Interactions: Timema californicum Scudder & S. H. 1895
• Global Biotic Interactions: Timema californicum Scudder & S. H. 1895
• Global Biotic Interactions: Timema californicum Scudder & S. H. 1895
• Global Biotic Interactions: Apis mellifera Linnaeus 1758
• Global Biotic Interactions: Timema californicum Scudder & S. H. 1895
• Global Biotic Interactions: Timema californicum Scudder & S. H. 1895
• Global Biotic Interactions: Vespula pensylvanica (de Saussure 1857) (Guêpe de l'ouest)
• Global Biotic Interactions: Poecile rufescens (Townsend & JK 1837) (Mésange à dos marron)
• Global Biotic Interactions: Aphelocoma californica (Vigors 1839) (Geai buissonnier)
• Global Biotic Interactions: Poecile rufescens (Townsend & JK 1837) (Mésange à dos marron)
• Global Biotic Interactions: Poecile rufescens (Townsend & JK 1837) (Mésange à dos marron)
• Global Biotic Interactions: Prenolepis imparis (Say 1836)