Compositae Working Group (CWG) (2021). Global Compositae Database. Silphium asteriscus var. angustatum A.Gray. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1241964 on 2024-09-18
original description(1886). Synoptical Flora of North America 1(2, Suppl.): page(s): 449 [details]
Present Inaccurate Introduced: alien Containing type locality
From other sources
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record 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 Silphium asteriscus L. var. angustatum A. Gray [Preliminary Checklist of North American Compositae] Silphium asteriscus var. angustatum A. Gray [Tropicos] [details] LSID urn:lsid:compositae.org:names:02E9D9C9-6088-4B95-9C5F-0BCEE217CBAF [details]