Grevillea curviloba

Grevillea curviloba is a low, spreading shrub in the family Proteaceae, typically growing less than a metre in height with fine, needle-like foliage and small cream to pale pink flowers arranged in the toothbrush-like clusters characteristic of the genus. Like other Grevillea species, its flowers produce nectar that attracts birds and insects, making it a contributor to pollinator activity within its local plant community, while its dense growth habit offers shelter for small fauna.

The species is endemic to Western Australia, restricted to shrubland habitats in and around the Perth metropolitan region, particularly on the Swan Coastal Plain. Its distribution is naturally limited, and remaining populations occur as fragmented patches within a landscape heavily modified by human development.

Grevillea curviloba is threatened primarily by ongoing urban and housing expansion, which continues to clear and fragment remaining shrubland habitat. Road and rail infrastructure development further dissects populations, while agricultural activity linked to annual and perennial non-timber crops encroaches on suitable habitat. The species is also affected by problematic native species and disease pressures, including dieback caused by the pathogen Phytophthora cinnamomi, which is well documented as a threat to Proteaceae in southwestern Australia.

Conservation attention has focused on protecting remaining habitat patches through local planning controls, reserve management, and monitoring of known populations. Some populations occur within conservation areas subject to weed control and dieback hygiene protocols aimed at limiting pathogen spread.

Despite these measures, the species remains classified as Critically Endangered, with a decreasing population trend. Continued urban growth pressure in the Perth region, combined with disease impacts, suggests ongoing decline unless habitat protection and pathogen management are substantially strengthened.