[Bidens hyperborea var. arcuans Fern., moreBidens hyperborea var. cathancensis Fernald, Bidens hyperborea var. colpophila (Fernald & H. St. John) Fernald, Bidens hyperborea var. gaspensis Fern., Bidens hyperborea var. hyperborea Greene, Bidens hyperborea var. laurentiana Fassett, Bidens hyperborea var. svensonii Fassett]
