Spiny Rush Sea Rush NATIVE! WEED!

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Spiny rush ’s Sea rush Juncus acutus V Juncus kraussii WEED! NATIVE! Juncus acutus (Spiny rush) is an invasive plant Juncus kraussii (Sea rush) is a common native of low fertility disturbed areas, coastal ats and salt marsh species, found only in the coastal other moist low lying areas, including inland areas of temperate Australia and New Zealand. areas. Originally from the Mediterranean region, It is not as invasive or prickly and does not it has adapted to the South East climate. impede access to an area. • Distinctive hemispherical, globe-like • More erect, upright tussock shape, tussock shape, to 1.6m high to 1.5m high • Invasive and spreading • Non-invasive • Flower/ seed head 4-13cm long • Not as prickly • Broader, stiffer spreading stems • More open seed head to 20cm long and leaves with a stiff, sharp point • Smaller seed capsule, 2.5-3mm long, • Larger seed capsule 4-6mm long, filled with containing hundreds of tiny seeds (0.5-1mm) comparatively larger seeds (1.3-2mm) • Provides important habitat in low-lying wet coastal areas for other plants and wildlife Why is Spiny rush a problem? Highly invasive • Out competes other vegetation • Unpalatable to stock • Once established, it becomes impenetrable due to its sharp spines • Harbour for vermin, particularly rabbits and foxes • Seeds germinate throughout the year, spreading via water, vehicles, machinery cultivation and soil movement For more information or advice on how to control Spiny rush and other weeds, contact your local Authorised Officer via Natural Resources South East: (08) 8735 1177; www.naturalresources.sa.gov.au/southeast This project is supported by SELGA and Natural Resources South East through funding from the Australian Government.

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