Compositae Working Group (CWG) (2021). Global Compositae Database. Pterotheca obovata Boiss. & Noë. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1194639 on 2025-03-29
LSID urn:lsid:compositae.org:names:82D5884C-A7A8-4C36-8244-99950B263C46 [details] Type material [Turkey] "Hab. in subalpinis Armeniae meridionalis circâ Ardana", Noë [details]