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Eidothea hardeniana
Nightcap oak is a rare tree of warm temperate rainforest in one small area of northern New South Wales, reaching up to 40 m, and only about 100 wild plants are known. It is grown in cultivation, and it needs a humid, rainy, well-drained acidic soil setting to do well.
Eidothea hardeniana, commonly named nightcap oak, is a species of tree, up to 40 m (130 ft) tall, of the plant family Proteaceae, which botanist Robert Kooyman recognised as a new species only recently in 2002. It is found only in the Nightcap Range in northern New South Wales, Australia. The species has an official listing as critically endangered on the Australian Commonwealth EPBC Act and as Endangered on the NSW Threatened Species Act. The name hardeniana honours the botanist Gwen Harden. Phylogenetics studies now suggest it represents a basal branch of the Proteoid clade of the Proteaceae.
The trees are only known to grow naturally in a single creek catchment in warm temperate rainforest in the Nightcap Range, northern New South Wales, Australia, referred to in the original description paper as "in Nightcap National Park and in the adjacent Whian Whian State Forest", more specifics of the recent (2000s) Nightcap NP collecting locality being undisclosed; a previous specimen was collected earlier, by L.J. Webb and J.G. Tracey in 1953,
Text excerpted from the Wikipedia article Eidothea hardeniana by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
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.
