Allocasuarina grampiana

Threats include possible susceptibility to the pathogen Phtytophthera cinnamomi. While, as far as is known, no testing of susceptibility of this species to Phtytophthera cinnamomi has been undertaken, a related species, A. robusta, a narrow-range endemic of South Australia, was found to be highly susceptible. The higher altitudes occupied by A. grampiana probably convey some protection against virulence of Phtytophthera cinnamomi, but climate change may eventually reduce this effect. Some subpopulations at lower altitudes are at higher risk of Phtytophthera cinnamomi infection, and also at risk from to increased competition from non-native, and expanding subpopulations of Acacia longifolia subsp. longifolia (currently most problematic in the northern Grampians where A. grampiana is less common). The species is likely to be at risk from climate-change induced or anthropogenically increased fire frequency and poor recruitment due to extreme drought stress. It is possible that some subpopulations on lower slopes of the ranges are threatened by expansion of the weedy, non-native wattle such as Acacia longifolia subsp. longifolia, but the likely impact is not clear.

A conservation seedbank collection (ca. 4,000 seeds) exists at the Victorian Conservation Seedbank, Royal Botanic Gardens Victoria. A duplicate collection of similar size is held at the Millennium Seed Bank, Royal Botanic Gardens Kew, U.K. All known subpopulations occur in the Grampians/Gariwerd National Park, but otherwise no specific conservation measures are known.