There are fourteen species of carnivorous plants occurring in New Zealand, and four species that have been known to occur in the past.
Drosera capensis (introduced and fully naturalised plant pest)
Drosera stenopetala (endemic)
Utricularia delicatula (endemic)
Utricularia gibba (introduced plant pest)
Utricularia livida (introduced and fully naturalised plant pest)
Carnivorous plants of New Zealand Wikipedia
Drosera burmanni, D. filiformis, U. arenaria and U. sandersonii have been known to occasionally occur.
Drosera capensis, U. arenaria, U. gibba, U. livida and U. sandersonii are listed on the National Pest Plant Accord since they are invasive species. The Cape sundew (D. capensis) and bladderwort (U. livida) have been found in the Auckland region and pose a threat to indigenous plants.