(ofCrepis biennis L.)Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 2. Salvius, Stockholm., available online athttps://www.biodiversitylibrary.org/page/358580 page(s): 807 [details]
Compositae Working Group (CWG) (2021). Global Compositae Database. Hedypnois biennis (L.) Huds.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1193819 on 2025-03-30
original descriptionHuds., Fl. Angl.. 1762 page(s): 342 [details]
original description(ofCrepis biennis L.)Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 2. Salvius, Stockholm., available online athttps://www.biodiversitylibrary.org/page/358580 page(s): 807 [details]