World Register of Marine Species (WoRMS)
Hieracium lachenalii subsp. garckeanum (Asch.) Zahn
Compositae Working Group (CWG) (2026). Global Compositae Database. Hieracium lachenalii subsp. garckeanum (Asch.) Zahn. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1152372 on 2026-08-30
(1921). Zahn - in Engler, Pflanzenr. 76. 1921