The first checklist of Austrian alien vascular plants was published in 2002 and contained 1110 taxa. Additional information on the species such as their regional establishment and potential pathways leading to their introduction are given as far as they are known. The database was partially updated in 2009. As part of the update of all alien species checklist for Austria, this database will be updated. Along with the addition of many new vascular plant species the information on all alien vascular plants will be updated. Further, database categories regarding introduction pathways will be updated to current categories compatible with international standards.