Compositae Working Group (CWG) (2025). Global Compositae Database. Helianthus petiolaris var. canescens A.Gray. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1224511 on 2025-04-28
original description(1852). Smithsonian Contr. Knowl. 3(Art. 5) page(s): 108 [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record A. Gray [CONABIO] A. Gray [Preliminary Checklist of North American Compositae] A. Gray [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helianthus petiolaris Nutt. var. canescens A. Gray [Preliminary Checklist of North American Compositae] Helianthus petiolaris Nutt. var. canescens A.Gray [IPNI] Helianthus petiolaris var. canescens A. Gray [CONABIO] Helianthus petiolaris var. canescens A. Gray [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Smithsonian Contributions to Knowledge 3(5): [Tropicos] [details] LSID urn:lsid:compositae.org:names:01202083-7E0B-4776-9885-04E7B16F6572 [details] Taxonomy Mar 1852 [details] Type material Oct 1849, 335, C.Wright, null GH [details]