Key to Tasmanian Dicots
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Phragmites (Poaceae) 4b:322
Phragmites australis is a reasonably common native grass of estuarine and lowland river banks (for example the lower Derwent). It is a large, erect grass (up to 3 m tall), with leaves spread up the stem. The leave are 20-60 cm long and 2-5 cm wide. It is sometimes confused with a weed species from similar habits (Spartina anglica), but differs most obviously in its inflorescence. Phragmites has a large feathery inflorescence, whereas that of Spartina is composed of 2-6 narrow spikes.
 

 
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