correct name is Falcataria falcata (L.) Greuter & R.Rankin.

The four names Adenanthera falcataria, Albizia falcataria, Paraserianthes falcataria and Falcataria falcata can each be correct given different taxonomic opinions that put the plant in each of these four genera. Which is the 'right' genus is a problem for taxonomy, not nomenclature. Thus this tree species will have a different correct botanical name for different people. Different taxonomists may publish revisions or monographs picking