Compositae Working Group (CWG) (2021). Global Compositae Database. Helianthus californicus Nutt. ex Torr. & A.Gray. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1124216 on 2025-03-30
original description(1842). Fl. N. Amer. (Torr. & A. Gray) 2 page(s): 325 [details]
Unreviewed
LSID urn:lsid:compositae.org:names:CDC75354-9CB4-4500-948D-37D373E8CC98 [details] Status invalid (pro syn. of H. nuttallii Torrey & A. Gray 1842). [details] Taxonomy Apr 1842 [details]