clumps up in the coastal forest shade

Size
Height: 1–2 m, Spread: 1–1.5 m, large dense clumps
Lifespan
10–20 years
Diet
Photosynthetic. Draws energy from sunlight. Obtains nutrients from moist, well-drained soils in forest environments.
Habitat
Lowland and coastal forests, forest margins and scrub. Prefers moist, well-drained soils with partial shade. Often forms large clumps in forest understorey.
Range
Throughout New Zealand from Northland to Stewart Island. Most common in lowland and coastal forests. Also found on Chatham Islands.
Endemism
Endemic
Main Threats
Habitat loss from land clearance is primary threat. Browsing by introduced possums and deer. Climate change affecting forest habitats.
Population
Populations considered stable and widespread. Species common in lowland forests throughout New Zealand. Threatened by ongoing habitat loss.
Conservation Status
Not Threatened
Human Risk
caution
Handling Note
sharp sedge leaves cause skin lacerations, wear long pants when walking through
Conservation Note
Endemic sedge; widespread in wetlands and damp forests throughout New Zealand.
Assessment
NZTCS Vascular Plants (2023)
Te Ao Māori
In Māori tradition māpere valued for bright fruits and tough leaves. Orange-red fruits eaten fresh. Leaves used for weaving baskets or kete and fish traps or hīnaki. Name māpere refers to fruiting plant. Plant also used medicinally. Plant of forest. Gathered by those who knew shady places. Sweet fruit from understorey.
Birds eat its bright fruits. Gahnia xanthocarpa is large, tussock-forming sedge. Long, arching leaves. Tough and fibrous. Dark green on top and paler underneath. Bright orange-red fruits distinctive feature. Hanging in clusters from centre of clump. Fruits are plant's most striking feature. Bright orange-red almost fluorescent. Appear in summer and autumn. Fleshy and sweet. Eaten by birds which disperse seeds. Fruits also eaten by Māori. Leaves are long and narrow. Up to 2 metres in length. Arch outward from centre of clump. Forming fountain-like shape. Leaf margins sharply serrated. Capable of cutting skin. Māpere is common in lowland and coastal forests throughout New Zealand. Grows in forest understorey. Often along tracks and in damp gullies. Large clumps provide shelter for birds and insects. To find māpere is to walk lowland forest. Look for large clumps of arching leaves. Bright orange-red fruits. Fruits are flash of colour in green forest. Plant of shady places. Sedge of forest floor. The forest understorey is dark. Māpere grows tall. Arching leaves sharp. Orange-red fruits bright. Birds come. Fruits disappear. Sedge does not mind. That is point. It carries on regardless.