Hieracium conyzifolium Gouan, Ill. Observ. Bot.: 59. 1773
Hieracium conyzifolium, Ill. Observ. Bot.: 59. 1773
is earlier homonym of Hieracium conyzifolium, Hieracioth. 8: [in schedis] Gall. No. 483. 1899
is basionym for Crepis conyzifolia in Österr. Bot. Z. 22: 255. 1872
has orthographic variant Hieracium conizifolium
Hieracium conyzifolium, Ill. Observ. Bot.: 59. 1773