Towards a checklist of the vascular flora of the Neretva River Delta (Croatia).
The Neretva River Delta is considered one of the 96 important plant areas of Croatia and as an important wetland is listed as a Ramsar site. In this paper we provide data on habitat and floristic diversity recorded during a field study carried out in April 2011. We surveyed 10 localities and identified 18 habitat types, 12 of which are included in Annex I of the EU Habitat Directive. Out of 458 identified vascular plant taxa, 32 are included in the Red Book of Vascular Flora of Croatia as Endangered (5 taxa), Vulnerable (10 taxa), and Near threatened (11), while 6 taxa are regarded as Data Deficient. In addition, we recorded two invasive alien species and 12 endemic species for the Dinaric area, and discuss their conservation and biogeographical importance. We added 160 records from literature sources to our data, which resulted in 618 identified (recorded) taxa for the study region.