Hammer, T.2023-08-212023-08-212023Journal of the Adelaide Botanic Gardens, 2023; 37(2):63-702206-16492206-1657https://hdl.handle.net/2440/139222Hibbertia empetrifolia (DC.) Hoogland currently comprises subsp. empetrifolia from New South Wales, Tasmania and Victoria and subsp. radians Toelken from South Australia. These subspecies are critically re-evaluated. Evidence is presented to support the recognition of H. empetrifolia subsp. radians as a distinct species, for which the new combination Hibbertia radians (Toelken) T.Hammer is formally made. Descriptions and illustrations are provided for both species.en© 2023 Board of the Botanic Gardens and State Herbarium (Adelaide, South Australia). With the exception of images and other material protected by a trademark and subject to review by the Government of South Australia at all times, the content of this publications is licensed under the Creative Commons Attribution 4.0 Licence (https://creativecommons.org/licenses/by/4.0/). All other rights are reserved.Dilleniaceae; Hibbertia empetrifolia; South Australia; taxonomyJournal article2023-08-17653661Hammer, T. [0000-0003-3816-7933]