Retanilla is a genus of flowering plants in the family Rhamnaceae, native to Chile, Peru, and Argentina. The species in this genus are actinorhizal plants.
Taxonomy Retanilla comprises the following species: Retanilla ephedra (Vent.) Brongn. Retanilla patagonica (Speg.) Tortosa Retanilla stricta Hook. & Arn. Retanilla trinervia (Gillies & Hook.) Hook. & Arn.
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