Cascara Buckthorn,
Frangula purshiana
(DC.) A. Gray  

Common Names: Pursh's Buckthorn

Synonyms:
Rhamnus purshiana
DC.

Subspecies:
ssp. annonifolia- Cascara annona-leaved buckthorn
ssp. ultramafica- Cascara serpentine buckthorn
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Native distribution map for Frangula purshiana
Map courtesty USDA NRCS PLANTS Database
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Home>Families>Buckthorn Family, Rhamnaceae>
Cascara Buckthorn, Frangula purshiana