My project explores the evolutionary relationship between different species within the Onagraceae, or evening primrose, plant family. The most recent onagrad phylogeny, constructed using five genetic markers (Johnson et al. 2009), left several taxonomic relationships unresolved. Using next-generation sequencing, I hope to analyze a larger number of markers and address the following questions: - How are the species within Onagraceae related to one another? - Can high-throughput sequencing resolve taxonomic relationships that were previously unclear and more accurately delineate species?