Compositae Working Group (CWG) (2021). Global Compositae Database. Rudbeckia purpurea var. serotina Nutt.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1230081 on 2024-05-13
original description(1818). Gen. N. Amer. Pl. [Nuttall]. 2 page(s): 178 [details]
Present Inaccurate Introduced: alien Containing type locality
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record J. & J.T. Fraser, Cat. Pl. Upper Louisiana [Flora Malesiana] The Genera of North American Plants 2: [Tropicos] [details] LSID urn:lsid:compositae.org:names:88D30E2F-9E63-47A2-9752-60D4B9FA7B95 [details] Taxonomy 14 Jul 1818 [details]