Hieracium kuekenthalianum subsp. trichothecum Hieracium kuekenthalianum subsp. inexpertum Hieracium kuekenthalianum subsp. brachypogon Hieracium kuekenthalianum subsp. trivialiforme
Hieracium bocconei subsp. kuekenthalianum Hieracium tephrosoma subsp. kuekenthalianum Hieracium pseudocorconticum
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024