Hieracium caesium subsp. psammogenes Hieracium psammogenes subsp. leucolepidum Hieracium ammobium Hieracium subincisum subsp. leucolepidum Hieracium subincisum subsp. psammogenes Hieracium psammogenes Hieracium psammogenes subsp. psammogenes
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024