Morphological and genetic differences separating the subgenera of Acacia s.l. and molecular evidence that the genus Acacia s.l. is polyphyletic necessitate transfer of the following New World taxa from Acacia subgenus Aculeiferum Vassal to Senegalia, resulting in fifty-one Phytologia (June 2006) 88(1) Pedley (1986), all of which should be transferred to the genus Acaciella.
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