World Register of Marine Species (WoRMS)
Machaeranthera crispa (Brandegee) B.L.Turner & D.B.Horne
Compositae Working Group (CWG) (2026). Global Compositae Database. Machaeranthera crispa (Brandegee) B.L.Turner & D.B.Horne. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1088203 on 2026-08-30
(1889). Proc. Calif. Acad. Sci. ser. 2, 2