The aim of this paper is to describe the species biodiversity of important woody species in the riparian zone of wide floodplains in the Protected Landscape Area (PLA) Poodří (Central Europe, Czech Republic). The analysis of growth in terms of particular species was carried out to find out their growth potential. Another task was to evaluate the diversity and health condition of all trees and to determine the occurrence frequency of important woody species (IWS) in particular geobiocoene type groups of wide alluvial plains. The tree classification pyramid (veteran-representative-successor-expectant) was built up to provide the sufficient number of diverse IWS in the area. In total, 3,419 IWS were mapped in the whole area of the PLA Poodří (81.5 km2). In wide alluvial plains, the