Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium longiberbe Howell. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1107577 on 2024-05-13
original description(1901). Fl. N.W. Amer. 1 page(s): 395 [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 A Flora of Northwest America 4: [Tropicos] [details] LSID urn:lsid:compositae.org:names:E6AC1692-B336-4A0A-960C-C462229F0922 [details]