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However, human migration has led to the importation of many other plants (generally referred to as 'exotics' in New Zealand) as well as widespread damage to the indigenous flora, especially after the advent of European colonisation, due to the combined efforts of farmers and specialised societies dedicated to importing European plants & animals.
Urtica ferox, commonly known as tree nettle and, in Māori, ongaonga, taraonga, taraongaonga, оr okaoka, is a species of nettle endemic to New Zealand. Unlike the other species in the genus Urtica found in New Zealand, all of which are herbaceous, ongaonga is a large woody shrub that can grow to a height of 3 m (9.8 ft), with the base of the stem reaching 12 cm (4.7 in) in thickness.
To do this a range of measures are used, including carrying out wilding conifer control operations, encouraging reporting of the presence of wilding conifers, encouraging the removal of seed sources and advocating changes to the district plans of the territorial authorities to prevent or control the planting of inappropriate conifers.
Arthropodium cirratum (rengarenga, renga lily, New Zealand rock lily, rengarenga, or maikaika) is a species of herbaceous perennial plant, endemic to New Zealand, where it may once have been farmed. It is used for medicine as well as food, and has symbolic importance in traditional Māori culture .
The New Zealand Plant Conservation Network has published a list of New Zealand indigenous vascular plants including all 574 native trees and shrubs. [1] This list also identifies which trees are endemic to New Zealand and which are threatened with extinction.
The New Zealand Department of Conservation started a recovery plan in 1995. [18] The wood rose is under threat from harvesting by collectors, browsing by possums , rats, pigs and deer , habitat loss, and the rarity of its pollinators and seed dispersers.
New Zealand's forest ecosystems for example are being considered as the second most endangered of the world, with only 7% of the natural habitat remaining. [12] A male brown kiwi. Eighty per cent of New Zealand's biota is endemic. New Zealand's biodiversity exhibits high levels of endemism, both in its flora and fauna.
Sophora tetraptera foliage Sophora tetraptera flowers, foliage and seed pods. Most species of kōwhai grow to around 8 m high and have fairly smooth bark with small leaves. S. microphylla has smaller leaves (0.5–0.7 cm long by 0.3–0.4 cm wide) and flowers (2.5–3.5 cm long) than S. tetraptera, which has leaves of 1–2 cm long and flowers that are 3–5 cm long.