[Buckthorns: The Genus Rhamnus West of the Cascade Mountains of Oregon and Washington]

California Buckthorn, California Coffeeberry, Coffeeberry

Rhamnus californica ssp. occidentalis

Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis

Leaves of California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

The evergreen leaves of California buckthorn as seen at Star Flat to the northwest of Eight Dollar Mt. in southwestern Oregon.....................April 5, 2009.

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - Flowers of California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

Flowers of California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California buckthorn as seen in forest near the Deer Creek Center to the west of Selma, Oregon.........July 13, 2012.

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - Leaves of California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California buckthorn, a shrub up to 6-8' high, as seen at Star Flat to the northwest of Eight Dollar Mt. in southwestern Oregon........April 5, 2009.

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California buckthorn observed in northern California along the Pacific Crest Trail #2000 about one and one-half miles west of the trailhead at Cook and Green Pass, Klamath National Forest........July 14, 2020.

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis) - Leaves of California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California Buckthorn, California Coffeeberry, Coffeeberry: Rhamnus californica ssp. occidentalis (Synonyms: Frangula californica, Frangula californica ssp. occidentalis, Rhamnus californica var. occidentalis)

California buckthorn as seen at the Days Gulch Botanical Area to the southwest of Selma, Oregon..........April 29, 2012.

Paul Slichter