Juncus novae-zelandiae Hook.f.
Small plants forming mounds or patches 2.5-15 cm high; rhizome slender, far-extending. Leaves setaceous, transverse septa scarcely visible externally. Inflorescence usually a single cluster of 3-5 small flowers. Stamens 6. Capsule to 3mm long, > tepals, glossy black.
N. Southwards from Waikato and Bay of Plenty. S., St. In swampy ground from sea-level to 1500 m.