Synonymy
Erigeron canadensis L. sec. Greuter & Rankin Rodríguez 2016
- ≡Conyza canadensis (L.) Cronquist syn. sec. Greuter & Rankin Rodríguez 2016
- =Erigeron pusillus Nutt. syn. sec. Greuter & Rankin Rodríguez 2016
- ≡Leptilon pusillum (Nutt.) Britton syn. sec. Greuter & Rankin Rodríguez 2016
- ≡Conyza canadensis var. pusilla (Nutt.) Cronquist syn. sec. Greuter & Rankin Rodríguez 2016
- =Erigeron subalpinus Urb. syn. sec. Greuter & Rankin Rodríguez 2016