Grader grass

• Upright, tufted annual grass 1–2.5m tall.
• Stems are jointed, cane-like.
• Leaf blades are long, narrow, up to 60cm long.
• Flower spikes have bent, brown bristles along them.
• Seed heads are reddish-brown when young, gold at maturity, 15–60cm long.

• Prefers subtropical and tropical areas.
• Found along roadsides and in disturbed areas.

• Found throughout coastal, subcoastal and seasonally dry tropical regions of Queensland.

• Seeds germinate year-round when light and moisture are present.
• Flowers appear from 6 weeks after germination.
• Grass dies when seeds are mature.
• Seeds last up to 4 years in soil.

Environmental

• Invades pasture and native grassland, replaces native plants.

• Seeds spread by vehicles, machinery and animals, and on clothing.
• Also spread by soil movement along roadsides by graders.

• Find out how farmers can prevent weed spread.
• Find out how gardeners and outdoor enthusiasts can prevent weed spread.

• Grader grass is not a prohibited or restricted invasive plant under the Biosecurity Act 2014. However, by law, everyone has a general biosecurity obligation (GBO) to take reasonable and practical steps to minimise the risks associated with invasive plants under their control.
• Local governments must have a biosecurity plan that covers invasive plants in their area. This plan may include actions to be taken on Grader grass. Some of these actions may be required under local laws. Contact your local government for more information.