Leaf trait variation of a dominant neotropical savanna tree across rainfall and fertility gradients

► This work determines intra-specific variation of leaf traits in Curatella which may account for its extended ecological range. ► SLA and Amass were positively related with rainfall whereas 13δC was negatively related. ► The responses to soil fertility were less clearly defined. ► The variation in leaf traits of Curatella populations is comparable to inter-specific variation seen in other studies. ► The leaf trait response of Curatella to rainfall and fertility position it at the slow end of the global leaf economics spectrum.