Berberis buxifolia var. spinosissima Reiche = Berberis microphylla Forster f.
English:
buxifolius,-a,-um;

https://archive.org/stream/#page/39/mode/2up
homotypic synonyms:
Berberis spinosissima (Reiche) Ahrendt;

protologue: Fl. Chile 1: 39 (1895)

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