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Gymnostoma australianum, sometimes known as oak, is a species of flowering plant that is endemic to a restricted area of the Daintree tropical rainforests of north-eastern Queensland, Australia. It is a member of the 'she-oak' family Casuarinaceae, members of which are characterised by fine, drooping, evergreen foliage. Superficially they look like some conifers such as Cupressus in the northern hemisphere and Callitris in the southern hemisphere.
This species is found in the area between the Daintree River and Cape Tribulation, in the vicinity of Thornton Peak. It has been described as a 'habitat specialist', being restricted to exposed sites with shallow, granite-derived, acidic soils such as stream banks, river islands and granite outcrops, and it does not colonise newly-disturbed areas of the surrounding rainforest. The altitudinal range is from sea level to about 1,350 m (4,430 ft), with the granite outcrops mostly occurring in the higher part of the range.
Gymnostoma nobile · Gymnostoma papuanum · Gymnostoma sumatranum · Gymnostoma
Text excerpted from the Wikipedia article Gymnostoma australianum by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
