We are dedicated to understanding the origin, diversity, distribution of, and evolutionary forces active within, the flowering plants. Our group is fundamentally integrative, synthesizing genomic, theoretical, phylogenetic, comparative, molecular and field work to address these biological questions. We use genomic data to understand the history of divergence, adaptation, introgression and biogeography in emerging model systems. We use large-scale comparative analyses to reveal the major drivers of species diversity, phenotypic variation, and reproductive isolation in the flowering plants. We complement these genomic and comparative inferences with both functional analyses of the genetic and ecological bases of reproductive isolation, and basic population genomic theory to generate hypotheses and novel inference methods.