Taxon - Odkazy a literatura
IUCN Red List of Threatened Species 2024-1 [126609466]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [jako Frangula californica (Eschsch.) A.Gray]
Datum citace: 29. leden 2024
Kew Science - Plants of the World online 2024-05 [717357-1]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Frangula californica (Eschsch.) A.Gray]
Datum citace: 30. leden 2025
C. Ulloa et al. (2017): An integrated assessment of the vascular plant species of the Americas, Science. 358. 1614-1617 [jako Frangula californica (Eschsch.) A. Gray]Datum citace: 1. duben 2020