Transpiration as a Missing Mechanism in Latitudinal Patterns of Leaf Phosphorus

Summary statement Transpiration plays a critical role in P uptake and may help reconcile observed latitudinal and deciduous–evergreen patterns in leaf P. I propose that transpiration‐mediated nutrient delivery is a key, yet overlooked, mechanism shaping large‐scale leaf P distributions and should be integrated into future trait‐based and biogeographic research.