Carex inversa

Family Cyperaceae

Knob Sedge

Perennial herb with long rhizome up to 12 cm long, allowing vegetative spread; flowering stems  to 20 cm high with shorter leaves. Longevity indefinite.

Flowers: September – May. Wind pollinated.

Fruit: Triangular nut, September – May.

Seed: Locally dispersed.

Gallery images: seed, seedling, rootstock, resprout


  • Grassy woodland habitat.
  • Frequent in woodland and grassland at the Australian Botanic Garden.
  • Appears to be a colonizer of open sites and particularly in grasslands.
  • Resprouts after fire.

Ecology of Cumberland Plain Woodland

Carex inversa flower

Carex inversa fruit

Carex inversa seed