Carex flagellifera, Glen Murray tussock, or Trip Me Up is endemic to the North, South, Stewart, Kermadec, and Chatham Islands, and  is found in coastal to montane regions.  It is a densely tufted very hardy sedge growing up to 50 cm high. Its habit is usually in free draining soils under scrub or open forest. Rarely in wetlands or in permanently damp, shaded sites. Carex flagellifera is a variable species and there are several colour forms which range from shiny green to bronze with brownish shades. The channelled leaves are 1.5-2.5 mm wide and are sharply scabrid along their margins. The flowering stems are 35-75 cm when first produced, but as the seeds mature they elongate to 2 m or so and lie along the ground. Flowering occurs during September – November and fruiting is throughout the year.