Cite this profile as: A.E. Orchard, E.W. Cross, R.J. Bayer. Helianthus annuus, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Helianthus%20annuus [Date Accessed: 21 March 2025]