The photo shows the seed head of this sedge with the 4 leaf-like bracts associated with it.
Seed stems (or culms) are 10 - 60 cm high, and have a diameter of 1.0 to 2.5 mm with a triangular cross-section. Most of the leaves are not as long the culms.
Plants are often tufted with short rhizome joining the stems. 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