My research spans the fields of biosystematics, plant geography, conservation genetics and genomics, landscape genetics, vegetation ecology, and floristics.
I focus mainly on arctic-alpine and boreal plants, especially the rare, disjunctly distributed and/or threatened species. I also focus on alien species and their dispersal and establishment in Norway.
Since 2002, I've been responsible for planning logistics, safety and carrying out botanical field expeditions in Arctic and northern regions:
2016 Northeast Greenland National park, USA (Alaska, Colorado, Minnesota), northern Norway
2014 Northeast Greenland National park, USA (Alaska, Colorado, Minnesota), northern Norway
2011 Middle and southern Norway
2009 Svalbard, Finnmark
2008 Nordland, Troms
2007 Northeast Greenland National park, Iceland, Scotland, northern Norway
2006 Svalbard, West and South Greenland, northern Norway
2004 Northern Norway, West Greenland and Arctic Canada
2003 Svalbard, northern Norway
2002 Svalbard, northern and southern Norway, Chile
Arktisk-alpin og boreal botanikk, biosystematikk, plantegeografi, bevaringsgenetikk, genomikk, vegetasjonsøkologi, floristikk.