(spiky anchorplant) is a shrub which, in Tasmania, has become restricted to the central highlands (its stronghold), the southern Midlands and the Launceston/Perth area. Much of its grassland and woodland habitat has long been converted for agriculture, with plants now mostly restricted to riparian areas protected by inaccessibility and rockiness. Only 1,000 to 2,000 plants remain, sometimes scattered in low numbers over large areas. Despite the ferocious spines of the species when mature, seedlings are highly palatable to native and introduced animals, stock and insects, resulting in small over mature subpopulations. Because of this, the species is subject to ongoing decline and is also at risk from agricultural, irrigation and power generation developments, roadside maintenance, chance events due to low numbers and fragmentation, and impacts of climate change. Small occurrences would benefit from periodic browsing protection to provide opportunities for the recruitment of seedlings.
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