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purshiana
Rhamnus purshiana (Pursh) DC. (Rhamnaceae) is native to British Columbia, California, Idaho, Mexico Northeast, Montana, Oregon, Washington.
Specimens are listed under the accepted name Frangula purshiana subsp. purshiana
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Rosales
Family
Rhamnaceae
Genus
Rhamnus
Specific Epithet
Authorship
(Pursh) DC.