There is only one species to occur at this latitude and this far inland, this being X. glauca angustifolia. X. australis has been widely used as a name for populations of grass-trees throughout eastern Australia, updated information has now defined that there is a geographical separation between X. glauca and X. australis, whereby X. australis typically occurs along the milder coastal regions of Tas, Vic, SA and NSW and X. glauca angustifolia is found on the colder (in winter) inland slopes and tablelands west of the Dividing Range in south-eastern Qld, NSW and central and northern Vic. (Bellette, M.P. (2014) Studies of the Distribution and Taxonomy of Xanthorrhoea glauca subsp. angustifolia (Xanthorrhoeaceæ) in Victoria. Muelleria Vol. 32. pp: 8–15.)
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