Hieracium triste subsp. gracile (Hooker) Calder & Roy L. Taylor

Hieracium triste subsp. gracile (Hooker) Calder & Roy L. Taylor is a synonym sensu FNA Ed. Comm., 2006a of:

Hieracium triste Willdenow ex Sprengel, an accepted species name sensu FNA Ed. Comm., 2006a.