Olearia Haastii is a plant species native to New Zealand, more specifically to the West Coast region of the South Island. Also known as Haast's daisy, this shrub can grow up to 3 meters tall and features shiny, dark green leaves and small white flowers. The Olearia Haastii is also commonly referred to as the New Zealand Speargrass bush or the Marlborough daisy. While it is not typically used for medicinal purposes, the plant is often used in landscaping and gardening due to its hardy nature and attractive appearance. As a member of the daisy family, other common synonyms for Olearia Haastii include the bush daisy, tree daisy, and mountain daisy.