Compositae Working Group (CWG) (2021). Global Compositae Database. Grindelia squarrosa f. depressa Steyerm.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1240714 on 2025-03-28
original description(1934). Ann. Missouri Bot. Gard. 21 page(s): 480 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Annals of the Missouri Botanical Garden 21(3): [Tropicos] [details] LSID urn:lsid:compositae.org:names:99EF79B8-5B8C-41DD-8141-A40685A0AFFB [details] Taxonomy under var. squarrosa [details]