The Davis lab is broadly interested in the origin and maintenance of plant diversity across space and time. Anthropogenic climate change, phylogenomics, biogeography, biome evolution, and symbioses are focal areas of our research. We have recently centered our efforts on i.) investigating phenological responses to climate change in temperate and tropical taxa by leveraging thousands of digital museum collections using crowdsourcing and cutting edge machine learning approaches; ii.) applying genomic tools to investigate molecular evolutionary phenomena, including whole genome duplications, deep coalescence, horizontal gene transfer, and hybridization; iii.) using biogeographic approaches to investigate biome origins and evolution; iv.) and comparative and developmental methods to investigate a variety of symbioses (plant-pollinator mutualisms, host-parasite interactions). Student and postdoctoral research projects have employed a variety of techniques spanning the domains of evolution and ecology, including molecular biology, systematics, development, phenology, and bioinformatics. The taxa we investigate range from algae to angiosperms.