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

Endemic quillworts have spiky appearance, grow to 0.3 m tall, and reproduce by spores (see arrow) in the leaf base (Photo: Trevor James, AgResearch).

Rohan Wells; Trevor James, AgResearch

Endemic quillworts have spiky appearance, grow to 0.3 m tall, and reproduce by spores (see arrow) in the leaf base