Anonymous - s.n. -
Carduus nutans
Davidse - 38999 - United States
Dierker - 00137 - United States
Featherly - s.n. - United States
Hohenacker - s.n. - Republic of Georgia
Pinard - s.n. -
Pruski - 4592 - United States
Spitzel - s.n. -
ZHU - 1113 - United States