Compositae Working Group (CWG) (2021). Global Compositae Database. Haplopappus rydbergii S.F.Blake. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1202648 on 2025-03-30
original description(1925). Contr. U.S. Natl. Herb. 25 page(s): 545 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record S.F. Blake [Preliminary Checklist of North American Compositae] S.F. Blake [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Haplopappus rydbergii S.F. Blake [Preliminary Checklist of North American Compositae] Haplopappus rydbergii S.F. Blake [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Contributions from the United States National Herbarium 25: [Tropicos] [details] LSID urn:lsid:compositae.org:names:CA1C80F7-4705-4E56-BCF6-C33C8FF75DD9 [details] Taxonomic remark Replacement name for Macronema obovatum Rydb. [details] Taxonomy as "Aplopappus" [details]