Spearwood is a large shrub which grows up to 5 m tall. It is found on the coastal plain, especially south of the Swan River. The common name refers to its spear-like stems arising from near its base. It grows in moist but not saturated soil. Creamy yellow flowers occur in spring. Where Spearwood grows, orchids are often found.
Ref: “Leaf and branch: trees and tall shrubs of Perth” by Robert Powell. Published by the Western Australian Department of Environment and Conservation, 2009.