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Family: Poaceae Scientific name: Cortaderia species Description: Plant Form: Very large perennial tussock grass. Size: Up to 6 m tall. Stem: Tall, upright, in dense clusters. Leaves: Drooping, up to 2 m long, with serrated edges, bluish to bright green above and dark to bright green below. Flowers: Large feathery plumes, white to brownish or pinkish, with silky hairs, up to 1 m long on stems, many flowers per plume. Fruit and Seeds: Huge numbers of tiny 2-3 mm long seeds in plumes. Habitat: Roadsides, railway lines, timber plantations, swamps, riverbanks. Distinguishing Features: Large fluffy plumes distinguish from native Saw sedges (Gahnia species). Does not have a bamboo-like stem compared to Native Common reed (Phragmites australis) and introduced Giant reed (Arundo donax). Weed Status: Priority Weed Weed Type: Environmental, Invasive Garden Escapee Lifeform: Grassy