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).