Compositae Working Group (CWG) (2021). Global Compositae Database. Lactuca canadensis var. obovata Wiegand. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1228037 on 2024-07-01
original description(1920). Rhodora 22: 11. 1920 page(s): 11 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Lactuca canadensis L. var. obovata Wiegand [Preliminary Checklist of North American Compositae] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Rhodora 22(253): [Tropicos] [details] LSID urn:lsid:compositae.org:names:1FABD085-4701-4017-A9D3-3EC02D632D73 [details]