Banksia ilicifolia

Banksia ilicifolia is a tree or large shrub in the Proteaceae family, distinguished by its holly-like serrated leaves, an adaptation that distinguishes it from most other banksias, which typically have narrower, non-serrated foliage. It produces distinctive dome-shaped flower spikes, coloured cream to red, that attract nectar-feeding birds and insects, making it an important pollinator resource within its ecosystem. Its woody follicles release seeds after fire, a common regenerative strategy among Proteaceae in fire-prone Australian landscapes.

The species is endemic to the southwest of Western Australia, where it grows in forest and shrubland habitats, often on sandy or seasonally moist soils within the Swan Coastal Plain and surrounding regions.

Its decline is driven primarily by ongoing habitat loss from housing and urban development, which fragments and removes populations directly. It also faces pressure from invasive species and disease, notably the introduced pathogen Phytophthora cinnamomi, which causes root rot and kills susceptible plants. Additionally, problematic native species and diseases contribute to reduced plant health and recruitment, compounding the effects of habitat clearing.

Conservation efforts include protection of remaining populations within reserves and bushland areas, monitoring of Phytophthora dieback, and land-use planning measures intended to limit further clearing in areas where the species persists. Seed banking and ex situ conservation collections also contribute to safeguarding genetic material.

The population trend is currently decreasing, and the species is listed as Endangered. Continued urban expansion in the Perth metropolitan region, combined with the persistent threat of dieback disease, suggests ongoing pressure on remaining populations unless habitat protection and disease management are strengthened.