Haloragis erecta, is a plant species that is endemic to New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

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It is found throughout New Zealand up to an altitude of 500m asl. The leaves are opposite and coarsely toothed. Stems are square and reddish in colour.

Seeds from the plant were taken to England as early as 1778 and were grown in Kew Gardens.

Toatoa is a name given to a number of other plants found in New Zealand.