The information provided here is an initial draft summary based on the provisional vascular flora checklist prior to vetting by our Taxonomic Committee. The information provided here should therefore be considered as a preliminary estimate. Information on taxon concept mapping conducted for the Flora of Alaska by the Herbarium at University of Alaska Museum (ALA) can be found on their website.
The Vascular Flora contains 2,319 accepted names of vascular species and infraspecies that are known to occur in Alaska.
- 1,780 species
- 404 subspecies
- 120 varieties
- 14 stable hybrids
The Alaska Center for Conservation Science (ACCS) has assigned “conservation concern” status to 312 vascular plant taxa in Alaska according to the NatureServe Conservation Status Assessment methodology. For more information on the rare taxa known to occur in Alaska, see the ACCS website.
Non-native taxa contribute a sizable and increasing portion of the Flora. Several taxa include both native and non-native genotypes. For more information on the non-native taxa known to occur in Alaska, see the AKEPIC website.
- 1,932 native taxa
- 392 non-native taxa
Species Count by Family
The table below shows the number of species (not infraspecies) per family that occur in Alaska. The table below can be filtered to show families that meet certain criteria (e.g., monocots only) or can be searched for a specific family.