Cyperus polystachyos
The photo shows the seed head of this sedge with the 4 leaf-like bracts associated with it.
Seed stems are 10 - 60 cm high, and have a diameter of 1.0 to 2.5 mm with a triangular cross-section. The longest leaves are not as long,
It is commonly found in disturbed areas; this one was in a storm-water drain together with Isolepis prolifera and Ranunculus inundata
Created on ... March 17, 2010
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