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Family: Poaceae Scientific name: Nassella hyalina Description: Plant Form Perennial tussock grass. Size Up to 1.5 m tall. Stem Occasionally branched, and with nodes which are smooth and hairless. Leaves Blades up to 20 cm long, flat or in-rolled, ribbed texture and rough edges. With a small flap rolled around the stem where they join. Flowers Branching heads 25 cm long with many spikelets contained within. With bracts up to 1.2 cm long surrounding individual flowers. Straw coloured with pointed tips. Fruit and Seeds Pale brown to purple and with wart-like growths. Have a long awn about 4 cm long. With crown-like structure between seed and awn. Habitat Degraded land, grasslands, woodlands, pastures. Distinguishing Features Difficult to distinguish from other exotic Needlegrasses (Nassella species) but can be distinguished from native spear grasses (Austrostipa and Poa species) by crown-like structure below seed awns. Weed Status: Priority Weed Weed Type: Environmental, Agricultural Lifeform: Grassy