Abstract
Rorippa laciniata is recorded from Hikurangi Swamp, Northland, New Zealand, and is considered to be an addition to the indigenous New Zealand flora. It has previously been considered endemic to eastern Australia. A description of R. laciniata based on New Zealand plants and features that distinguish it from the New Zealand endemic R. divaricata are provided, as are observations on its distribution, habitat, and conservation status. A revised key to Rorippa in New Zealand is presented.