<b>Phenotypic and genotypic data for genome-wide association study of flag leaf morphology in Chinese endemic wheat</b>

This dataset contains all primary phenotypic measurements and high-density genotypic markers used for the genome-wide association study (GWAS) of flag leaf morphology (FLM) traits in a unique panel of 182 Chinese endemic wheat (<i>Triticum aestivum</i> L.) accessions, as described in the associated publication.The resources provided here enable the full replication of the statistical analyses, facilitate future meta-analyses, and support the investigation of the genetic architecture underlying photosynthetic and yield-related traits in polyploid wheat.