3e09905e-3452-4e9d-aed1-24d713098631 https://tryout.nlbif.nl/resource?r=test_nl_red_list nl_red_list_vascular_plants_2012 Laurens Sparrius FLORON

NL

Baudewijn Odé FLORON

NL

Ruud Beringen FLORON

NL

Gentle Langezaal Hortus botanicus

Leiden 2311 WJ NL

Lycka Kamoen Hortus botanicus

Leiden 2311 WJ NL

Barbara Gravendeel Hortus botanicus Scientific director

Leiden 2311 WJ NL

user Niels Raes Naturalis Biodiversity Center Node staff

Leiden 2300 RA NL

user 2026-04-17 eng This dataset contains the 2012 Dutch Red List of vascular plants, which assesses the extinction risk of native and archaeophytic plant species in the Netherlands. The assessment follows the IUCN Red List criteria adapted for national use and provides a scientifically grounded basis for conservation policy, biodiversity monitoring, and habitat management. It was originally published as: L.B. Sparrius, B. Odé & R. Beringen, 2014. Basisrapport Rode Lijst Vaatplanten 2012 volgens Nederlandse en IUCN-criteria. FLORON Rapport 57. FLORON, Nijmegen. Checklist GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License. Creative Commons Attribution 4.0 International https://spdx.org/licenses/CC-BY-4.0.html CC-BY-4.0 The Netherlands 3.358 7.228 53.465 50.75 unknown Eva Alonso Vizcaino Naturalis Biodiversity Center Node manager Additional delegate

Leiden 2300 RA NL

The Red List is compiled by calculating the rarity and long-term trends of species for the Dutch criteria. A species is considered a Red List species when it adheres both to the trend (t) and rarity (z) criteria, or if it adheres to one of the two criteria in great extent. The criteria are applied to both the spread/dispersion (v) and the number of reproducing individuals. This results in the following criteria: population trend (tn; trend in number of reproducing individuals), dispersion trend (tv; trend in spread of reproducing individuals), rarity based on number (zn), and rarity based on dispersion (zv). The spread/dispersion is expressed as the percentage of surface area of the Netherlands. It is assumed that this includes 1,674 atlas grid squares of 5 × 5 km. The classes are defined as follows: 0 atlas grids (x), 1-16 atlas grids (zzz), 17-83 atlas grids (zz), 84-108 atlas grids (z), and more than 209 atlas grids (a). The trend and rarity criteria leads to the Dutch Red List categories (with the corresponding regional IUCN categories): VN (verdwenen in Nederland; Regionally Extinct), EB (ernstig bedreigd; Critically Endangered), BE (bedreigd; Endangered), KW (kwetsbaar; Vulnerable), GE (gevoelig; Near Threatened). There are three non-Red List categories: TNB (thans niet bedreigd; Least Concern), OG (onvoldoende gegevens; Data Deficient), and NB (niet beschouwd; Not Evaluated). In extreme cases there are three additional categories: VNW (in het wild verdwenen; -), UWW (in het wild uitgestorven op wereldschaal; Extinct in the Wild), and UW (uitgestorven op wereldschaal; Extinct). The conservation status of all 1432 native vascular plants of the Netherlands was assessed according to the IUCN criteria, and additionally the Dutch criteria. Only native species which reproduce and establish new populations in the Netherlands were considered. Non-native species and vagrants were not included. Laurens Sparrius author Baudewijn Odé author Ruud Beringen author Dick Bal user Arco van Strien user Leni Duistermaat user Eddy Weeda user 2026-03-27T19:20:12.944+00:00 dataset Sparrius L, Odé B, Beringen R, Langezaal G, Kamoen L (2026). Red List Vascular Plants (2012, Netherlands) - Rode Lijst Vaatplanten (2012, Nederland). Version 1.6. Naturalis Biodiversity Center. Checklist dataset. https://tryout.nlbif.nl/resource?r=test_nl_red_list&v=1.6 3e09905e-3452-4e9d-aed1-24d713098631/v1.6.xml