Hedysarum boreale subsp. boreale Hedysarum boreale subsp. mackenziei
Hedysarum pabulare var. rivulare Hedysarum canescens Hedysarum mackenzii var. pabulare Hedysarum mackenzii var. canescens Hedysarum boreale var. typicum Hedysarum mackenzii var. fraseri Hedysarum boreale var. boreale
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024