Photo: Frangula purshiana.

Flowering branch. Brussels bot.g., Belgium. Planted. 2008-06-05.
Frangula purshiana (DC.) Cooper Engl.: cascara sagrada, Pursh's buckthorn, cascara, chittem bark, sacred bark. Sven.: sagrada. Fran.: cascara. Dutch: cascara. Bot. syn.: Rhamnus purshiana DC.
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Photo: Frangula purshiana.