Compositae Working Group (CWG) (2021). Global Compositae Database. Opicrina Raf.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1080443 on 2024-05-06
original description(1836). New Fl. (Rafinesque) 4 page(s): 85 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record New Flora and Botany of North America . . . 4: [Tropicos] [details] LSID urn:lsid:compositae.org:names:B7965960-1817-4888-8A38-AA010B2DF21F [details]