Academic article

• Øvstedal, Dag Olav; Lindblom, Louise (2023). Arrhenia schistidicola (Hygrophoraceae, Agaricales) – a new species on the moss Schistidium crassipilum from western Norway. (external link)
• Ochyra, Ryszard; Øvstedal, Dag Olav; Broady, Paul A. (2022). The distribution of lichens and mosses at Edward VII Peninsula, Marie Byrd Land, Antarctica. (external link)
• Øvstedal, Dag Olav; Elix, J.A.; Broady, P.A. (2020). A new sorediate species of Amandinea (Caliciaceae)Ascomycota) from Antarctica. (external link)
• Øvstedal, Dag Olav; Fryday, Alan M.; Smith, R.I. Lewis (2019). Lecanora muscigena (Lichenized Ascomycota, Lecanorales), a new lichen species in the Lecanora fuscescens group from South Georgia. (external link)
• Fossen, Torgils; Holmelid, Bjarte; Øvstedal, Dag Olav (2019). Bumblebee death associated with Tilia x europaea L. (external link)
• Øvstedal, Dag Olav; Lindblom, Louise; Knudsen, Kerry et al. (2018). A new species of Acarospora (Acarosporaceae, Acarosporales, lichenized Ascomycota) from the Falkland Islands (Islas Malvinas). (external link)
• Øvstedal, Dag Olav (2018). Maritime species of the genus Verrucaria in Kerguelia. (external link)
• Ertz, Damien; Ptroot, André A.; Vijver, Bart Van de et al. (2014). Lichens from the utsteinen nunatak (Sør Rondane Mountains, Antarctica), with the description of one new species and the establishment of permanent plots. (external link)
• Oliveira-Júnior, Raimundo G. de; Oliveira, Ana P. de; Guimarães, Amanda L. et al. (2014). The first flavonoid isolated from Bromelia laciniosa (Bromeliaceae). (external link)
• Nguyen, Xuan Hong Thy; Juvik, Ole-Johan; Øvstedal, Dag Olav et al. (2014). 6-Carboxydihydroresveratrol 3-O-β-glucopyranoside - A novel natural product from the Cretaceous relict Metasequoia glyptostroboides. (external link)
• Øvstedal, Dag Olav; Schaefer, Carlos (2013). A new lichen species from the Heritage Range, Ellsworth Mountains, Antarctica. (external link)
• Fryday, Alan M.; Øvstedal, Dag Olav (2012). New species, combinations and records of lichenized fungi from the Falkland Islands (Islas Malvinas). (external link)
• Elix, John A.; Øvstedal, Dag Olav; Gremmen, Niek J.M. (2011). A new species of Cresponea (Roccellaceae, Ascomycota) from Gough Island. (external link)
• Lumbsch, H. Thorsten; Ahti, Teuvo; Altermann, Susanne et al. (2011). One hundred new species of lichenized fungi: a signature of undiscovered global diversity. (external link)
• Øvstedal, Dag Olav; Smith, Ronald I. Lewis (2011). Four additional lichens from the Antarctic and South Georgia, including a new Leciophysma species. (external link)
• Øvstedal, Dag Olav (2011). Blankburknekomplekset (Asplenium adiantum-nigrum s.lat) på Vestlandet. (external link)
• Øvstedal, Dag Olav; Smith, Ronald Ian Lewis (2009). Further additions to the lichen flora of Antarctica and South Georgia. (external link)
• Øvstedal, Dag Olav; Elix, John A. (2007). Three new lichen species from the French Antilles. (external link)
• Seymour, Fabian A.; Crittenden, Peter D.; Wirtz, Nora et al. (2007). Phylogenetic and morphological analysis of Antarctic lichenforming Usnea species in the group neuropogon. (external link)
• Øvstedal, Dag Olav; Gremmen, Niek J.M. (2006). Lichens of sub-Antarctic Heard Island. (external link)
• Tønsberg, Tor; Johnsen, J.I.; Øvstedal, Dag Olav (2005). Leptogium britannicum refound in Norway. (external link)
• Torskangerpoll, Kjell; Nørbæk, Rikke; Nodland, Egil et al. (2005). Anthocyanin content of Tulipa species and cultivars and its impact on tepal colours. (external link)
• Elix, J.A.; Øvstedal, Dag Olav; Gremmen, N.J.M. (2005). A new Lepraria species from Gough Island, South Atlantic Ocean. (external link)
• Øvstedal, Dag Olav (2005). Løvetenner i Hordaland.I-Taraxacum sect Erythrosperma-sandløvetenner. (external link)
• Øvstedal, Dag Olav; Smith, Ronald Ian Lewis (2004). Additions and corrections to the Lichens of Antarctica and South Georgia. (external link)
• Fossen, Torgils; Øvstedal, Dag Olav (2003). Anthocyanins from flowers of the orchids Dracula chimaera and D. cordobae. (external link)
• Fossen, Torgils; Øvstedal, Dag Olav; Slimestad, Rune et al. (2003). Anthocyanins from a Norwegian potato cultivar. (external link)
• Øvstedal, Dag Olav; Gremmen, Niek J.M. (2001). The lichens of Marion and Prince Edward Islands. (external link)
• Øvstedal, Dag Olav; Heegaard, Einar (2001). Biodiversity and vegetation dynamics in the coastal heathlands of western Norway. (external link)
• Fossen, Torgils; Slimestad, Rune; Øvstedal, Dag Olav et al. (2000). Covalent anthocyanin-flavonol complexes from flowers of chive, Allium schoenoprasum. (external link)
• Øvstedal, Dag Olav; Haaland, Inger Margrethe (1996). On the origins of Carex x liidi (Cyperaceae) from Spitzbergen. (external link)
• Øvstedal, Dag Olav; Haaland, Inger Margrethe (1996). On the origins of Carex x liidi (Cyperaceae) from Spitzbergen. (external link)
• Øvstedal, Dag Olav; Fossen, Torgils; Andersen, Øyvind Moksheim et al. (1996). Characteristic Anthocyanin Pattern from Onions and other Allium spp. (external link)
• Øvstedal, Dag Olav; Elix, John A.; Smith, Ronald I. Lewis (1996). A new species of Parmella (Lichenized Ascomycotina) from the Antarctic. (external link)
• Øvstedal, Dag Olav; Fossen, Torgils; Andersen, Øyvind Moksheim et al. (1996). Characteristic Anthocyanin Pattern from Onions and other Allium spp. (external link)
• Tønsberg, Tor; Øvstedal, Dag Olav (1995). Cladonia peziziformis new to Norway from a burnt Calluna heath. (external link)
• Øvstedal, Dag Olav; Gremmen, H. J. M. (1995). Two further biopolar lichens. (external link)
• Smith, R. I. L.; Øvstedal, Dag Olav (1994). Solorina spongiosa in Antarctica, an extremely disjunct bipolar lichen. (external link)
• Tollsten, L.; Øvstedal, Dag Olav (1994). Differantiation in floral scent chemistry among populations of Conopodium majus (Apiaceae). (external link)
• Øvstedal, Dag Olav (1993). Tre nordnorske lignosar: tromsøbjørk, kola-or og sibirgran. (external link)
• Øvstedal, Dag Olav; Smith, R. I.; Lewis, [Mangler fornavn] (1993). A new Pannaria species from the Antarctic. (external link)
• Øvstedal, Dag Olav; Mjaavatten, Olav (1992). A multivariate comparison between three NW European populations of Artemisia norvegica (Asteraceae) by means of chemometric and morphometric data. (external link)
• Øvstedal, Dag Olav; Smith, R. I. Lewis (1992). Pertusaria signyae (Lichenes), a new species from the Antarctic. (external link)
• Vezda, A.; Øvstedal, Dag Olav; Smith, R. I. Lewis (1992). Eine neue Gyalecta-Art aus der Antarctis. G. pezizoides sp. n. (lichenisierte Fungi, Gyalectaceae). (external link)
• Søchting, U.; Øvstedal, Dag Olav (1992). Contributions to the Caloplaca flora of the western Antarctic region. (external link)

Poster

• Nguyen, Xuan Hong Thy; Juvik, Ole-Johan; Øvstedal, Dag Olav et al. (2013). A novel natural product from the dinosaur-age tree Metasequoia glyptostroboides. (external link)
• Fossen, Torgils; Slimestad, Rune; Øvstedal, Dag Olav et al. (2000). Anthocyanins from grasses. (external link)

Popular scientific article

• Øvstedal, Dag Olav (2011). Evjestorr, Carex oederi var. bergrothii, ein sjeldsynt og raudlista storr på Vestlandet. (external link)
• Øvstedal, Dag Olav (2011). Raggtelgkomplekset (Dryopteris affinis s.lat.) på Vestlandet. (external link)
• Øvstedal, Dag Olav (2008). Den eldste naturaliserte påskelilja på Vestlandet. (external link)
• Øvstedal, Dag Olav (2008). Fjelltjæreblomen i Almklovdalen - ein ny varietet som veks på olivin. (external link)
• Øvstedal, Dag Olav (2006). Løvetenner i Hordaland II - seksjonene Borea, Borealia, Borigena, Celtica, Hamata, Macrodonta, Maevosa, Spectabilia og Taraxacum. (external link)
• Moe, Bjørn; Myking, Reidun; Øvstedal, Dag Olav (2006). Månadsblomen 2005. (external link)
• Øvstedal, Dag Olav (1999). Rhododendron catawbiense i Bergen. (external link)
• Øvstedal, Dag Olav (1997). Om fruktkarakterar hos tromsøpalme og kjempebjønnkjeks. (external link)

Academic monograph

• Øvstedal, Dag Olav; Tønsberg, Tor; Elvebakk, Arve (2009). The lichen flora of Svalbard. (external link)

Interview

• Øvstedal, Dag Olav; Moe, Bjørn (2007). Nye farger i Arboretet: "Ugress" til pynt og Nye hager kommer til sommeren. (external link)

Non-fiction book

• Øvstedal, Dag Olav; Smith, Ronald Ian Lewis (2001). Lichensof Antarctica and South Georgia.A guide to their identification and ecology. xii, 411 s. (external link)

Academic chapter/article/Conference paper

• Fægri, Knut; Jørgensen, Per Magnus; Karlsen, Peder Ole et al. (2000). Den botaniske hage - Muséhagen på Nygårdshøyden - et hundreårsjubileum. (external link)

Textbook

• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (Bergen Museums skrifter nr. 5). (external link)
• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (external link)
• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (external link)
• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (external link)
• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (external link)
• Moe, Dagfinn; Salvesen, Per Harald; Øvstedal, Dag Olav (2000). Historiske hager. (external link)

Compendium

• Øvstedal, Dag Olav (1993). Vossakvann-prosjektet ved Botanisk Hage, Universitetet i Bergen. (external link)

See a complete overview of publications in Cristin.