Berberis flexuosa is a species of shrub in the family Berberidaceae described as a species in 1802.Ruiz López, Hipólito & Pavón, José Antonio. 1802. Flora Peruviana, et Chilensis, sive, Descriptiones et icones plantarum Peruvianarum, et Chilensium, secundum systema Linnaeanum digestae, cum characteribus plurium generum evulgatorum reformatisauctoribus 3: 52, t. 281 in Latin It is endemic to Peru.Macbride, J. F. 1938. Berberidaceae. 13(2/3): 665–680. In J. F. Macbride (ed.) Flora of Peru. Publications of the Field Museum of Natural History, Botanical Series, Field Museum, ChicagoTropicos, Berberis flexuosa Ruiz & Pav.
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