Description: This product is a continuous estimate of the probability of medusahead occurrence. Species: Medusahead (Taeniatherum caput-medusae) Spatial extent: The western United States; six-level II EPA ecoregions in the arid and semi-arid western United States. Spatial resolution: ~94-m (3-arc-second) pixels Recentness: 2020 Author-suggested use: These model outputs are intended as a resource for prioritizing monitoring and management at moderate to broad spatial scales (e.g. subwatershed) in conjunction with local knowledge and field verification. Predictions of species presence outside the model training areas represent hypotheses for where the species may occur next.