Locality: Cienega Creek Natural Preserve, including lower Davidson Canyon and Cienega Creek. The Preserve is located in eastern Pima County, near Vail. (32.017950, -110.642720)
Abstract: Checklist of plants collected within the current Preserve boundaries, generally between 1986-2021; in the process of updating to include image vouchers for eastern extent of certain frost-sensitive species. The checklist includes species no longer extant within Preserve.
Most nomenclature is updated, but identifications are subject to revision.