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Why was the former family Flacourtiaceae divided among other families?
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Malpighiales
Weeping willow (Salix babylonica).
The former family Flacourtiaceae is no longer recognized as a valid taxonomic group because it was found to be polyphyletic, meaning its members did not share a single common ancestor. Consequently, the family was broken up into several parts to better reflect evolutionary relationships within the order Malpighiales.
Most of the genera previously classified under Flacourtiaceae have been reassigned to the Salicaceae (willow family) and Achariaceae families. This reorganization is part of the broader classification efforts by the Angiosperm Phylogeny Group, which uses molecular data to establish more accurate, natural groupings of flowering plants.1