Norwegian Red List (2021): Ikke valgtAlle rødlistekategorierData DeficientNear ThreatenedVulnerableEndangeredCritically EndangeredRegionally Extinct
Crowberry (Empetrum nigrum subsp. nigrum) Narve Brattenborg
Empetrum nigrum Jacob Sturm (Deutschlands Flora)
Crowberry (Empetrum nigrum subsp. hermaphroditum) Odd Johan Berland (2006-08-02)