New locality and threat status of Damasonium polyspermum Coss. (Alismataceae) in Croatia

The species Damasonium polyspermum Coss. (Alismataceae) was first recorded in Croatia in 1994 in Jezera on the island of Murter. The species was discovered in September 2011, and confirmed in June 2012, at the pond Bunari, near Krka National Park. According to the Habitats Directive, this pond belongs to the priority habitat type 3170 *Mediterranean temporary ponds. It is used for watering livestock, which maintains an open habitat necessary for this species. As a very rare and threatened species, D. polyspermum should be included in the Red List of vascular flora of Croatia as an endangered species: EN B1ab(iii, v)+2ab(iii, v).