Waarnemingen.be - Plant occurrences in Flanders and the Brussels Capital Region, Belgium is a species occurrence dataset published by Natuurpunt. The dataset contains over 700,000 plant occurrences of over 1,200 naturally occurring species (native, vagrant or migrant species), recorded by volunteers (citizen scientists), mainly since 2008. The occurrences are derived from the database http://www.waarnemingen.be, hosted at the nature conservation NGO Natuurpunt in collaboration with Stichting Natuurinformatie. Together with the datasets Florabank1 (http://doi.org/10.3897/phytokeys.12.2849) and the Belgian IFBL Flora Checklists (http://doi.org/10.15468/xnlbke), the dataset represents the most complete overview of indigenous plants in Flanders and the Brussels Capital Region. Generalized and/or withheld information: location information is generalized to 4 x 4 km² IFBL grid cells. Observer name, exact XY-coordinates, toponyms, and photographs are not included in the published dataset, but are known in the source database. To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver (http://creativecommons.org/publicdomain/zero/1.0/). We would appreciate however, if you read and follow these norms for data use (http://www.natuurpunt.be/normen-voor-datagebruik [in Dutch]) and provide a link to the original dataset (http://doi.org/10.15468/fyuklz) whenever possible. If you use these data for a scientific paper, please cite the dataset following the applicable citation norms and/or consider us for co-authorship. We are always interested to know how you have used or visualized the data, or to provide more information, so please contact us via the contact information provided in the metadata or opendata@inbo.be. The publication of this dataset was supported by the INBO as part of the Flemish contribution to LifeWatch.