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Grevillea caleyi
Grevillea caleyi, also known as Caley's grevillea, is a critically endangered species of flowering plant in the family Proteaceae, and is endemic to a restricted area around the Terrey Hills and Belrose area in New South Wales. It is an open, spreading shrub, growing up to 4 m (13 ft) tall with deeply divided leaves with linear lobes, and fawn flowers with a maroon to red style.
Caley's grevillea is occasionally grown as an ornamental plant, and has been grown in a variety of gardens across Australia. Like most grevilleas, it grows best in well-drained, acidic, gravelly or sandy loam soil in a sunny position for optimal flowering, though it will also grow in some shade. It tolerates frosts to at least −6 °C (21 °F) and can tolerate extended dry periods, but not drought. It is usually propagated from seed and will self-sow in the garden, but it may also be readily propagated from cuttings or grafted onto rootstock, usually G. robusta, which allows it to grow in a wider variety of soils. Grafted G. caleyi tend to be hardier and live longer than plants grown from seed.
It hybridises easily with other related grevillea species, such as with G. aspleniifolia and G. longifolia, which has resulted in a large variety of hybrids and cultivars becoming available, including several 'Poorinda' varieties such as 'Poorinda Empress' and 'Poorinda Emblem'. The cultivar Grevillea 'Ivanhoe' is said to be a hybrid between G. caleyi and G. longifolia.
Caley's grevillea is restricted to an area of 64 km2 (25 sq mi) in the suburbs of Terrey Hills, Belrose and Ingleside, and the endangered ecological community of Duffys Forest. It grows in woodland on iron-rich laterite sandstone soils on ridgetops between elevations of 170 to 240 metres (560 to 790 ft) above sea level in open forest.
Grevillea acacioides · Grevillea acanthifolia · Grevillea acerata · Grevillea acrobotrya · Grevillea acropogon · Grevillea acuaria · Grevillea adenotricha · Grevillea agrifolia · Grevillea albiflora · Catclaws Grevillea · Grevillea alpivaga · Grevillea althoferorum
Text excerpted from the Wikipedia article Grevillea caleyi 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.
