Hieracium crocatum subsp. glareivagum Hieracium crocatum var. crocatum Hieracium crocatum subsp. coniciforme Hieracium crocatum subsp. brachybrachion Hieracium crocatum subsp. conicum Hieracium crocatum subsp. asterodermum Hieracium crocatum subsp. valdefrondosum Hieracium crocatum subsp. phrissoides Hieracium crocatum subsp. lespinassei
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024