Advances in clarifying the phylogenetic relationships of acacias: Relevance for biological control

► Improved resolution of phylogenetic relationships within Mimosoideae are presented. ► several phytophage taxa exhibit fidelity to a derived clade within Acacia s.s. ► most invasive Australian acacias are representatives of this derived clade. ► agent screening for biological control of invasive Australian acacias is rationalized.