Schematic representation of the analysis: All extracted taxon names were compiled into a unique name list (UNL). Based on this list taxon verification using EOL, COL and TPL was performed yielding separate unique identifier lists (UIL) containing all verified taxa with source specific identifiers. The UNL was also used for the retrieval of information on conservation (IUCN Red List), invasiveness (GISIN, DAISIE) and geographic distribution (Flora database). The UIL was used to retrieve information on geographic distribution directly via EOL, COL and TPL.