On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Basal sheaths are very dark red-purple to black or dull brown at their base

Kerry Bodmin, NIWA / Trevor James, AgResearch

Right: stems are less than 3.5 mm in diameter. Found in damp pasture or swamp margins. Juncus amabilis. [PDF 274 KB]