Turkish endemic taxon Onopordum bracteatzun Boiss. & Heldr. var. arachnoideunz Erik & Stimbill is transferred to O. myriacanthum Boiss. as O. myriacanthun7 subsp. arachnoideurn (Erik & Stimbtil) Pinar & Behcet comb. & stat. nov. It is characterized by the phyllaries with densely and persistently arachnoid hairs both inside and outside, and upper stem leaves are 2-8 cm far from capitulum. In addition, the pollen characteristics and achene features are presented. The conservation status of O. myriacanthurn subsp. arachnoideum has been assessed according to IUCN criteria. A distribution map of O. myriacanthum subsp. aracknoideum and its related taxa is also presented.