Compositae Working Group (CWG) (2025). Global Compositae Database. Malacothrix sonorae W.S.Davis & P.H.Raven. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1114187 on 2025-09-13
original description(1962). Madroño 16 page(s): 264 [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record W. S. Davis & P. H. Raven [Cichorieae Portal] W.S. Davis & P.H. Raven [CONABIO] W.S. Davis & P.H. Raven [Preliminary Checklist of North American Compositae] W.S. Davis & P.H. Raven [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Malacothrix sonorae W. S. Davis & P. H. Raven [Cichorieae Portal] Malacothrix sonorae W.S. Davis & P.H. Raven [CONABIO] Malacothrix sonorae W.S. Davis & P.H. Raven [Preliminary Checklist of North American Compositae] Malacothrix sonorae W.S. Davis & P.H. Raven [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Madrono; Journal of the California Botanical Society 16(8): [Tropicos] W. S. Davis & P. H. Raven in Madroño 16. 1962 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:A5BFC365-CD09-4256-9B12-F72F66CB9CD3 [details] Type material [USA] "Tucson Mountains, altitude 2600 feet, Pima County, Arizona", 24 Apr 1903, Thornber 362 (DS) / [USA] "Tucson Mountains, altitude 2600 feet, Pima County, Arizona", 24 Apr 1903, Thornber 362 (UC) / [USA] "Tucson Mountains, altitude 2600 feet, Pima County, Arizona", 24 Apr 1903, Thornber 362 (ARIZ 59491) / [USA] "Tucson Mountains, altitude 2600 feet, Pima County, Arizona", 24 Apr 1903, Thornber 362 (POM) [details]