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Baccharis grisebachii and B. polygama are reported from the Antofagasta Region, Chile. Both species are known to occur in Argentina and Bolivia. A few small populations were reported in the surroundings of quebrada Barrera, quebrada Pacopaco and quebrada Cherejara, commune of Calama, Antofagasta Region. In addition, an artificial taxonomic key with all known species present in the region, is provided. The distribution map in South America and some comments on the conservation status of the two registered species are provided here.
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Romero et al. (2024) studied this question.
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