Carex impexa is a perennial sedge of the Cyperaceae family that is native to the South Island of New Zealand.
Description The species has a tufted habit with short rhizomes that are up to in length and typically have a diameter of . The ascending to spreading culms have a green to bronze to red coloration and are long and in diameter. It has dull brown loose fitting leaf sheaths that are shed as the plants ages. The stiff and recurved leaves are in triangular cross-section and taper to a point, the leaves are in length and wide. The sedge will produce three to five erect brown coloured inflorescences around November and then fruit between January and March.
Distribution C. impexa is endemic to a small area on the South Island of New Zealand. It is situated in an area around north west of Nelson in the Kahurangi National Park from the Pikikiruna Range south to the Matiri Range. It is typically found growing on weathered limestone on marble or calcereous mudstone or siltstone as a part of grassland or forested communities.
Conservation Status In 2009 and 2012, according to the New Zealand Threat Classification System, the plant was listed as at risk and as naturally uncommon.
See also List of Carex species
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