Distribution and Habitat
The most widely distributed of all western banksias, Banksia attenuata occurs across a broad swathe of southwest of Western Australia, from Kalbarri National Park and the Murchison River (with an outlying population in Zuytdorp National Park) southwards right to the southwestern corner of the state at Augusta and Cape Leeuwin, and then eastwards across the south to the western edge of Fitzgerald River National Park. Along the eastern border northwards it is found at Lake Grace, Lake Magenta north of Jerramungup, and the Wongan Hills. It is restricted to various sandy soils, including white, yellow or brown sands, and sand over either laterite or limestone. It forms an important component of open Eucalyptus woodland as a dominant or understory tree or tall shrub. To the north, it is a shrubby component of shrubland. It does not grow on heavy (clay-based) soils, and is hence only found in sandy pockets. Within open woodland, it is found alongside B. menziesii, B. ilicifolia, B. prionotes, Allocasuarina fraseriana, Eucalyptus marginata, or E. gomphocephala. The annual rainfall within its distribution varies from 300 to 900 mm (12–36 in).
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