Conyza bifrons Linnaeus var. radiata Linnaeus, Species Plantarum 2: 861. 1753.
"Habitat in Pyrenaeis, Canada." RCN: 6393.
Lectotype (Anderberg in Jarvis & Turland in Taxon 47: 358. 1998): [icon] " Conyza pyraenaica foliis primulae veris " in Hermann, Parad. Bat.: 127. 1698.
Current name: Inula bifrons L. (Asteraceae).