Haloragis erecta

Haloragis erecta, the shrubby haloragis, toatoa or erect seaberry, is a plant species that is endemic to New Zealand.
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.