Executive summary

In 2022 the conservation status of all known indigenous vascular plant taxa in Tāmaki Makaurau / Auckland was assessed using the New Zealand Threat Classification System (NZTCS). This is the first time Auckland Council has facilitated this assessment. Department of Conservation draft regional guidelines were used and a process outlined by the Greater Wellington Regional Council followed. 

In 2025 following the release of the latest national conservation status assessment for vascular plants, Auckland Council revised a subset of 14 species in consideration of the updated national listings. This included one species overlooked in the 2022 assessment and one species previously unrecorded in the region.

Following the 2025 revision, a total of 792 vascular plant species were identified as present in Tāmaki Makaurau / Auckland. 205 species were assessed as Threatened, 152 as At Risk, four as Non-resident Native (Regional Vagrant or Coloniser) and 88 as Data Deficient. Forty-five per cent of vascular plant species are Threatened or At Risk. An additional 27 species were identified that have become extinct or may have formerly occurred in the region. 

Auckland Council technical report, TR2025/6

This report updates and replaces Auckland Council technical report, TR2022/19

See also

Searchable species list