Cite this profile as: Paul G. Wilson. Philotheca difformis subsp. smithiana, 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/Philotheca%20difformis%20subsp.%20smithiana [Date Accessed: 22 April 2025]