Both the PRA record and PRA report are available. 

Lysichiton americanus originates from the pacific coastal zone of Northwest-America and was intentionally introduced into the EPPO region as an ornamental plant about 110 years ago. It is now found in 11 European countries. The species has been observed to reduce biodiversity in the Taunus region in Germany. The species is recorded in other parts of the EPPO region, and might represent a threat to biodiversity. An initial EPPO PRA was performed and approved in 2005. After the proposal to list this species in the Directive 2000/29/EC, the European Food Safety Authority reviewed the initial PRA and made some comments. The initial PRA is therefore revised in the view of the EFSA comments and of information having become available after the initial PRA.