There are three subspecies, only subsp. arborescens occurs in Victoria. See profile under Zieria arborescens subsp. arborescens.
Source:
Duretto, M.F. (1999). Rutaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 4, Cornaceae to Asteraceae, pp. 153–197. Inkata Press, Melbourne.
