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SILKY OAK FACTS |
Map is from The Atlas of Living Australia web site, licensed under Creative Commons Attribution 3.0 Australia License
Common Name
Silky Oak
Other Names
Southern Silky Oak, Australian Silver-oak
Description
The Silky Oak is a fast-growing large upright tree. It is the largest species of Grevillea. Produces 8cm - 15cm long bottlebrush shaped racemes of golden-orange flowers in spring and summer. The leaves are dissected bipinnatifid, and look a bit like fern fronds. Leaves are 15-30 cm long with greyish white or rusty underside Trunk diameter can reach 1m. Fruits are dark brown leathery follicles, about 2cm long.
Habitat
subtropical and dry rainforest environments with over 1000 mm annual rainfall
Distribution
New South Wales, Queensland,
Growth Characteristics
Height (m): 8 - 20
Spread (m): 7 - 14
Soil Texture: loam, clay
Soil pH: acid soils, neutral soils, alkaliine soils
Frost Sensitivity: resistant
Minimum Rainfall (mm): 550
Flower Colour: orange
Flower Season: spring, summer
(source: SA State Flora Catalog)
Wildlife Interest
attracts honeyeaters. Also attracts possums
Classification
| Class: | Magnoliopsida | | Order: | Proteales | | Family: | Proteaceae | | Genus: | Grevillea | | Species: | robusta | | Common Name: | Silky Oak |
Relatives in same Genus
Grevillea agrifolia
Grevillea alpina
Grevillea angulata
Grevillea arenaria
Grevillea armigera
Grevillea asparagoides
Grevillea asplenifolia
Grevillea astericosa
Grevillea baileyana
Grevillea banksii prostrate
Grevillea baueri
Grevillea bipinnatifida
Grevillea bronwenae
Grevillea candelabroides
Grevillea coccinea
Grevillea concinna
Grevillea corrugata
Grevillea crithmifolia
Grevillea decurrens
Grevillea didymobotrya
Grevillea dielsiana
see A-Z list for more ...
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