Abronia umbellata ssp. breviflora on the Oregon coast: Reintroduction and population monitoring
Pink sand-verbena (Abronia umbellata ssp. breviflora) is listed as endangered by the Oregon Department of Agriculture, and a Species of Concern by the U.S. Fish and Wildlife Service. Since the
Pink sand-verbena (Abronia umbellata ssp. breviflora) is listed as endangered by the Oregon Department of Agriculture, and a Species of Concern by the U.S. Fish and Wildlife Service. Since the late 1970’s, the number of natural populations in Oregon has decreased from approximately 10 populations to less than 5, though the current status of populations not included in this report are unknown. The 2006 Conservation Strategy cites surveys conducted from 1986-2003 to establish the number and size of populations present in Oregon. The date of the last rangewide survey in Oregon is not clear, but occurred prior to 2004. The primary threats to the species include competition from European beachgrass (Ammophila arenaria) and other weedy beach species, and other human-influenced habitat changes.
This report includes information about pink sand-verbena research along the Oregon coast since 1997, including seeding and transplantation experiments, and population monitoring at several beach and dune habitats.
In 2018 our actions and observations included activities at sites managed by the USDA Forest Service and Bureau of Land Management.
