|White Yiel Yiel|
Grevillea hilliana, of the plant family Proteaceae, is a species of Australian endemic trees known by many common names including white yiel yiel, white silky oak, grey oak, Hill's silky oak, and yill gill.
It is naturally found from north eastern New South Wales, to the north through the east coast, to north eastern Queensland. In north eastern NSW the species "grows in subtropical rainforest, often on basic igneous substrates, north of Brunswick R." In north eastern Queensland the species "grows in drier, more seasonal rain forest and is often associated with Kauri Pine (Agathis robusta)."
Wild trees are found growing to heights of between 8 and 30 metres. White to pale-green flowers open from May to October (late autumn to mid spring) in its native range.
The type specimen was obtained "in the forests at the Pine River of Moreton Bay". The species was formally described in 1857 by botanist Ferdinand von Mueller in Transactions of the Philosophical Institute of Victoria.
- "Grevillea hilliana". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 14 Mar 2013.
- Hyland, B. P. M.; Whiffin, T.; Zich, F. A.; et al. (Dec 2010). "Factsheet – Grevillea hilliana". Australian Tropical Rainforest Plants. Edition 6.1, online version [RFK 6.1]. Cairns, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO), through its Division of Plant Industry; the Centre for Australian National Biodiversity Research; the Australian Tropical Herbarium, James Cook University. Retrieved 14 Mar 2013.
- "Grevillea hilliana". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
- "New South Wales Flora Online: Grevillea hilliana". Royal Botanic Gardens & Domain Trust, Sydney, Australia. Retrieved 14 Mar 2013.
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