Habitat: alpine, bank, coast, fernland, flat , gap, grassland, gully, hill, lowland, margin, moist, open, pasture, ridge, roadside, sand, shrubland, silt, slope, terrace, tussockland, wetland

Dispersal: Seed, vegetative

 Recognition
  • a perennial rush up to 120 cm high and forming dense tufts, with short rhizomes.
  • its stems are soft, bright- or yellow-green, and smooth.
  • its inflorescence is many-flowered.
  • its capsules are 2-3 mm long, yellowish-brown, and with obtuse or retuse apices.
 References
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.