California Orcutt Grass (Orcuttia california vasey) is found in Riverside County, San Diego County; Baja California, Mexico. Vernal Pools are the preferred habitat of this inconspicuous prostrate grass. Stockpen gravelly clay loam is mapped for the Dillon Road population while the Skunk Hollow site has Ramona sandy loam, at the few locales examined, vernal pool associates were not representative of the pool flora in the region, but limited to certain species.*
*Courtesy of http://sandiego.sierraclub.org