The IINH Red List for Vascular Plants from 2018 is the most recent inventory of threatened vascular plant species in Iceland. Assessment is as per the IUCN Red List Categories and Criteria from 2017.
A total of 56 vascular plant species are on the IINH’s 2018 Red List. All Icelandic vascular plant species were assessed, with the exception of Hieracium (hawkweed) and Taraxacum (dandelion) microspecies. As of 2018, one species is classified as regionally extinct (RE) in Iceland, eight are critically endangered (CR), seven are endangered (EN), and 31 are vulnerable (VU). Several species are new on the Red List. Most newly added species to the Red list have only been recently found here in Iceland. Many of these species thus fall into the category of Data Deficient (DD). These species are: Melampyrum pratense (CR), Botrychium lunaria v. melzeri (DD), Botrychium nordicum (DD), Carex buxbaumii (DD), Huperzia arctica (DD), and Potamogeton compressus (DD).
The IINH recommends that all species on the Red List (i.e., in the categories RE, CR, EN, VU, and DD) be declared protected in Iceland.
NB. This is an English version of the Red List. In the case of discrepancy, the original Icelandic version, Válisti æðplantna, is the authoritative text.
Species Regionally Extinct (RE)
Species Critically Endangered (CR)
Species Endangered (EN)
Species Vulnerable (VU)
Species Near Threatened (NT)
Data Deficient (DD)
Species not Redlisted
Species evalutated Least Concern (LC)
Species evaluated Not Applicable (NA)
The IINH Red List for Plants (Válisti plantna, in Icelandic) was first published in 1996 and included vascular plants; Bryopsida; benthic algae classified as red algae (Rhodophyceae), yellow-green algae (Tribophyceae), golden algae (Chrysophyceae), brown algae (Phaeophyta), and green algae (Chlorophyta); and lichens with the exception of crustose lichens. Species assessment for the 1996 Red List was based on the IUCN criteria from 1994.
An updated version of the IUCN Red List Categories and Criteria was approved in 2000 and published in 2001. Following the publication of Vöktun válistaplantna (Fjölrit Náttúrufræðistofnunar No. 50, authored by Hörður Kristinsson, Eva G. Þorvaldsdóttir, and Björgvin Steindórsson) in 2007, on monitoring of redlisted and protected plant species, 79 species vascular plant species were assessed based on the 2001 IUCN Red List Categories and Criteria. A new version of the Red List for Vascular Plants was published in 2008 (Válisti æðplantna 2008, in Icelandic).