Summary ⁷

Rhamnus californica (syn. Frangula californica), commonly known as coffeeberry and California buckthorn, is a species of flowering plant in the family Rhamnaceae, the buckthorns. It is native to the southwestern United States and Baja California in Mexico. It is an introduced species in Hawaii.

Distribution ⁸

Frangula californica occurs from southwest Oregon southward along the Sierra Nevada foothills and Coast Ranges of California and into Baja Mexico. There are disjunctive populations in Colorado, Wyoming, Arizona and New Mexico. This non-serpentine species is normally found below 700 meters in elevation. There are two subspecies of this plant: F. c. californica and F. c. occidentalis. The subspecies F. c. californica is associated with northern California Coastal Ranges, west-central California, South Coast Ranges and the Providence Mountains.

Sources and Credits

1. (c) James Gaither, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/13892958@N07/3841343658
2. USDA NRCS PLANTS Database, no known copyright restrictions (public domain), https://plants.usda.gov/gallery/large/frcac5_001_lhp.jpg
3. USDA NRCS PLANTS Database, no known copyright restrictions (public domain), https://plants.usda.gov/gallery/large/frcac5_002_lhp.jpg
4. USDA NRCS PLANTS Database, no known copyright restrictions (public domain), https://plants.usda.gov/gallery/large/frcac5_003_lhp.jpg
5. USDA NRCS PLANTS Database, no known copyright restrictions (public domain), https://plants.usda.gov/gallery/large/frcac5_004_lvp.jpg
6. Suzanne Foster, no known copyright restrictions (public domain), https://plants.usda.gov/gallery/large/rhca_004_lvd.jpg
7. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Frangula_californica
8. (c) Unknown, some rights reserved (CC BY-NC), http://eol.org/data_objects/7093464

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• NatureServe Explorer 2.0
• OregonFlora.org
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• World Flora Online

Range Map

(c) NatureServe, some rights reserved (CC-BY-NC)

iNat Map