Lamiaceae Martinov
Prostanthera howellae Blakely , orth. var., scientific
Blakely, W.F. (1929), A Further Contribution to our Knowledge of the Flora of New South Wales. Proceedings of the Linnean Society of New South Wales 54(5): 684 [primary reference]
Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [orthographic variant]
orthographic variant of: Prostanthera howelliae Blakely legitimate