Rhamnaceae
Frangula

Frangula purshiana (DC.) A.Gray ex J.G.Cooper

First published in Trans. Amer. Med. Assoc. 10: 228 (1857)
This species is accepted
The native range of this species is W. Canada to Mexico (Durango). It is a shrub or tree and grows primarily in the temperate biome. It is used as a poison and a medicine and for food.

Descriptions

Conservation
IUCN Red List Assessment (2021): LC.
Vernacular
Cáscara, Cáscara sagrada
[UPFC]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/61957071/61957074

Conservation
LC - least concern
[IUCN]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Rhamnaceae, Marshall C. Johnston (University of Texas Herbarium). Flora of Tropical East Africa. 1972

Note
Is reported to be occasionally cultivated in East Africa.
[FTEA]

Uses

Use Food
Used for food.
Use Materials
Used as material.
Use Medicines
Medical uses.
Use Poisons
Poisons.
[UPFC]

Common Names

English
Californian Buckthorn

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Living Collection Database

    • Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0