A slowly spreading tussock plant with brown flowerheads in spring and summer. Grows well in boggy positions, in swamps, beside streams and in shallow ponds in full sun.

Host plant for the Evening Brown (Melanitis leda) and Spotted Sedge-skipper (Hesperilla ornata) butterflies.

The Cyperaceae are grasslike, herbaceous plants comprising about 70 genera and 4,000 species, commonly found in wet or saturated conditions.

Photo: Robert Whyte