Compositae Working Group (CWG) (2025). Global Compositae Database. Eupatorium pycnocephaloides B.L.Rob.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1190588 on 2025-09-13
original description(1916). Proc. Amer. Acad. Arts 51 page(s): 534 [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record B.L. Rob. [MesoAmericana] B.L. Rob. [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Eupatorium pycnocephaloides B.L. Rob. [MesoAmericana] Eupatorium pycnocephaloides B.L. Rob. [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Proc. Amer. Acad. Arts 51: 534. 1916. [Robinson Eupatorieae] Proceedings of the American Academy of Arts and Sciences 51: [Tropicos] [details] LSID urn:lsid:compositae.org:names:D77F35BB-E3B5-4197-B126-855A8C15508C [details] Specimen Mexico: Chiapas: 3400 m, 5 Feb 1987, E. Martínez S., A. Márquez, G. Urquijo & M. Ramírez 19487 (MO). Guatemala: Chimaltenango: Volcan de acatenango 2800 m, 22 Apr 1999, M. Véliz & J. Rosito MV 99.7023 (MO). [details] Type material Guatemala: Climbibg over shrubs, Sololá, alt. 2135 m, 28 January, 1915, E.W.D. Holway 144 (HT: GH). [details]