Proteaceae Juss.
Petrophila incurvata W.Fitzg. , orth. var., scientific
Fitzgerald, W.V. (January 1912), New West Australian plants. Journal of Botany, British and Foreign 50: 22 [primary reference]
Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - [orthographic variant]
orthographic variant of: Petrophile incurvata W.Fitzg. legitimate