Data for 'Invasive grasses increase fire occurrence and frequency across U.S. ecoregions' (https://doi.org/10.1073/pnas.1908253116). File geodatabase with observations of 12 fire-prone invasive grass species across select states within the US. Each point represents an observation of a species within a 500-m pixel and contains information about fire occurrences between 2000-2015, with other pertinent information about the environment.