Hieracium chlorifolium subsp. leoninum Hieracium chlorifolium subsp. vulpianum Hieracium chlorifolium subsp. isoplates Hieracium chlorifolium subsp. chlorifolium Hieracium chlorifolium subsp. pseudopenninum Hieracium chlorifolium subsp. pulchriforme Hieracium chlorifolium subsp. rendinaricum Hieracium chlorifolium subsp. fulcratiforme
Hieracium penninum subsp. chlorifolium
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024