Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
Order: Proteales
Family: Proteaceae
Genus: Buckinghamia
Species: B. celsissima
Buckinghamia celsissima
F.Muell.
The species was described in 1868 by Ferdinand von Mueller in honour of Richard Grenville, 3rd Duke of Buckingham, from a collection of material made by John Dallachy near Rockingham Bay on 11 January 1865. Its specific epithet is Latin for "very tall". Common names include ivory curl flower and spotted silky oak
Buckinghamia celsissima reaches 30 m (98 ft) tall in its natural rainforest habitat, but is much smaller, reaching 10 m (33 ft) tall, in Australian east coast gardens.Glossy dark green above and whitish below, the leaves are quite variable. Juvenile leaves have one or more lobes while adult leaves are simple and entire, measuring 8 to 16 cm (3.1 to 6.3 in) long by 3–7 cm (1.2–2.8 in) wide.The white flower spikes appear over summer and autumn.Terminal and showy,[4] these are drooping racemes up to 20 cm (7.9 in) in length. Flowers are followed by the development of woody follicles, 1.5–3 cm (0.59–1.18 in) long
source
RE: Buckinghamia - The ivory Curl Flower.