About Coriaria sarmentosa G.Forst.
Coriaria sarmentosa G.Forst. is a large, branching shrub that bears pairs of long, glossy oval leaves. These leaves measure between 40 and 50 mm (1.6 to 2.0 in) in length. This species is endemic to New Zealand, where it occurs primarily in the South Island and the lower North Island. Like other tutu species, Coriaria sarmentosa dies back during the winter months. It is poisonous, and its toxicity is reported to be strong enough to have killed many livestock, as well as two elephants. The convulsant toxin tutin is confirmed to be present in the plant's leaves and fruit, and may occur in all of its tissues.