Banksia quercifolia

Species of shrub in the family Proteaceae from the south coast of Western Australia

Speciesbox
|name = Oak leaved banksia
|image = Banksia quercifolia 01 gnangarra. jpg
|image caption = Banksia quercifolia in Kings Park
|genus = Banksia
|parent = Banksia subg. Banksia
|species = quercifolia
|authority = R. Br. |synonyms ref = is a species of shrub that is endemic to the southwestern coast of Western Australia. It has smooth, greenish bark, wavy, wedge shaped, serrated leaves, yellow, orange or brown flowers in cylindrical spikes, followed by broadly linear follicles surrounded by the remains of the flowers.

Banksia quercifolia is a shrub that typically that grows to a height of and does not form a lignotuber. It has smooth, greenish brown bark that becomes lightly tessellated and grey as it ages. It has wavy, serrated, narrow wedge shaped leaves long and wide on a petiole long. The flowers are arranged in a cylindrical spike long and wide when the flowers open. The flowers are yellow, orange or brown with the perianth long and a stiff, gently curved pistil long. Flowering occurs from March to November and up to thirty five follicles develop in each head surrounded by the remains of the flowers. The follicles are broadly linear and wavy, long, high and wide.

The type specimen of B. quercifolia was collected by Robert Brown from around King George Sound in December 1801

In 1869, Ferdinand von Mueller described two varieties of B. quercifolia in Fragmenta phytographiae Australiae but the names, var. integrifolia and var. quercifolia are not accepted by the Australian Plant Census.

Oak leaved banksia occurs on the south coast of Western Australia from D'Entrecasteaux National Park in the west to Mount Manypeaks in the east where it is commonly grows in depressions, seasonally wet flats and along the margins of swamps, in white or grey peaty sandy soils.

Banksia quercifolia is a fast growing, bushy shrub that flowers within five years from seed. The flowers are sometimes hidden but are numerous and persist for many years. Because of its natural habitat, it may tolerate more moisture than other banksias. Seeds do not require any treatment, and take 25 to 40 days to germinate.