Data: Phenotypic trait differences between Iris pseudacorus in native and introduced ranges support greater capacity of invasive populations to withstand sea level rise

All data are generated from field sample acquisition and measurements, and laboratory analyses of these data. Plant traits were measured in the field, and plant tissue samples were analyzed for biochemical composition in the laboratory. Soil samples were collected and analyzed in the laboratory. Organic matter was analyzed by percent loss on ignition. Soil water salinity was analyzed by standard saturation paste extraction methology. Tidewater level data were acquired from continuous tide monitoring stations in the two study estuaries, or from onsite data acquisition with Solinst pressure transducers.