Cosmopolitan. Perennial. C3.
Family. Poaceae (Grass family).
It is often associated with with Cumbungi (Bulrush) (Typha species).
Phragma: Hedge (Greek), it often grows densely; australis: southern.
The feathery flowers, the size, and the habitat are distinctive.
Photos 1, 2 (left): Common Reed at Harcourt North. 3: Spikelets with hair tufts at the base. 4: Part of the cluster showing flower branches. Forest Creek. 5: Recently opened flower cluster.