Sierra Coffeeberry (Frangula rubra) | View Observations
Frangula rubra (syn. Rhamnus rubra) is a species of flowering plant in the buckthorn family known by the common names red buckthorn and Sierra coffeeberry.
Other Names: Red Buckhorn, Sierra Coffee Berry, Rhamnus rubra
Obtuse Buckthorn (Frangula rubra ssp. obtusissima) | View Observations
Frangula rubra obtusissima is a subspecies of plants with 7 observations
Red Buckthorn (Frangula rubra ssp. rubra) | View Observations
Frangula rubra rubra is a subspecies of plants with 6 observations
Nevada Coffeeberry (Frangula rubra ssp. nevadensis) | View Observations
Frangula rubra nevadensis is a subspecies of plants with 0 observations
Modoc Buckthorn (Frangula rubra ssp. modocensis) | View Observations
Frangula rubra modocensis is a subspecies of plants with 0 observations
Yosemite Buckthorn (Frangula rubra ssp. yosemitana) | View Observations
Frangula rubra yosemitana is a subspecies of plants with 0 observations
