Cyperus polystachyos / another sedge

The photo shows the seed head of this sedge with the 04) 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: 03/17/2010