Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium nigrocollinum S.Watson. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1120512 on 2024-09-21
original description(1890). Proc. Amer. Acad. Arts 25 page(s): 133 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Proc. Am. Acad. 25 [IPNI] [details] LSID urn:lsid:compositae.org:names:B75207A9-A809-4D10-8996-1A857E8D8243 [details] Taxonomy 25 Sep 1890 [details] Type material June 1887, s.n., W. H. Forwood, Black Hills, holotype GH [details]